Home About us Contact
|
Home About us Contact | ||
|
|
||
Diverse Sample (diverse + sample)
Selected AbstractsAssociation Between Testosterone and Estradiol and Age-Related Decline in Physical Function in a Diverse Sample of MenJOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 11 2008Andre B. Araujo PhD OBJECTIVES: To examine the association between aging and physical function in men by testing a theoretically based model of aging, hormones, body composition, strength, and physical function with data obtained from men enrolled in the Boston Area Community Health/Bone (BACH/Bone) Survey. DESIGN: Cross-sectional, observational survey. SETTING: Population-based. PARTICIPANTS: Eight hundred ten black, Hispanic, and white randomly selected men from the Boston area aged 30 to 79. MEASUREMENTS: Testosterone, estradiol, sex hormone,binding globulin, lean and fat mass, grip strength, and summated index of physical function (derived from walk and chair stand tests). RESULTS: Measures of grip strength and physical function declined strongly with age. For instance, 10 years of aging was associated with a 0.49-point difference (scale 0,7) in physical function. Age differences in total testosterone and estradiol concentrations were smaller than age differences in their free fractions. Weak or nonsignificant age-adjusted correlations were observed between hormones and measures of physical function, although path analysis revealed a positive association between testosterone and appendicular lean mass and a strong negative association between testosterone and total fat mass. Lean and fat mass, in turn, were strongly associated with grip strength and physical function, indicating the possibility that testosterone influences physical function via indirect associations with body composition. CONCLUSION: The age-related decline in serum testosterone concentration in men has a weak association with physical strength and functional outcomes through its associations with lean and fat mass. [source] A dual systems model of adolescent risk-taking,DEVELOPMENTAL PSYCHOBIOLOGY, Issue 3 2010Laurence Steinberg Abstract It has been hypothesized that reward-seeking and impulsivity develop along different timetables and have different neural underpinnings, and that the difference in their timetables helps account for heightened risk-taking during adolescence. In order to test these propositions, age differences in reward-seeking and impulsivity were examined in a socioeconomically and ethnically diverse sample of 935 individuals between the ages of 10 and 30, using self-report and behavioral measures of each construct. Consistent with predictions, age differences in reward-seeking follow a curvilinear pattern, increasing between preadolescence and mid-adolescence, and declining thereafter. In contrast, age differences in impulsivity follow a linear pattern, with impulsivity declining steadily from age 10 on. Heightened vulnerability to risk-taking in middle adolescence may be due to the combination of relatively higher inclinations to seek rewards and still maturing capacities for self-control. © 2010 Wiley Periodicals, Inc. Dev Psychobiol 52: 216,224, 2010 [source] Subjective social status affects smoking abstinence during acute withdrawal through affective mediatorsADDICTION, Issue 5 2010Lorraine R. Reitzel ABSTRACT Objectives Direct and mediated associations between subjective social status (SSS), a subjective measure of socio-economic status, and smoking abstinence were examined during the period of acute withdrawal among a diverse sample of 421 smokers (33% Caucasian, 34% African American, 33% Latino) undergoing a quit attempt. Methods Logistic regressions examined relations between SSS and abstinence, controlling for socio-demographic variables. Depression, stress, positive affect and negative affect on the quit day were examined as potential affective mediators of the SSS-abstinence association, with and without adjusting for pre-quit mediator scores. Results SSS predicted abstinence to 2 weeks post-quit. Abstinence rates were 2.6 (postquit week 1) and 2.4 (postquit week 2) times higher in the highest versus the lowest SSS quartile. Depression and positive affect mediated the SSS,abstinence relationships, but only depression maintained significance when adjusting for the baseline mediator score. Conclusions Among a diverse sample of quitting smokers, low SSS predicted relapse during acute withdrawal after controlling for numerous covariates, an effect accounted for partially by quit day affective symptomatology. Smokers endorsing lower SSS face significant hurdles in achieving cessation, highlighting the need for targeted interventions encompassing attention to quit day mood reactivity. [source] THE DIVIDED WORLD OF THE CHILD: DIVORCE AND LONG-TERM PSYCHOSOCIAL ADJUSTMENTFAMILY COURT REVIEW, Issue 3 2010Gordon E. Finley This study evaluated the extent to which divorce creates the "divided world of the child," as well as consequences of this "divided world" for long-term adjustment. An ethnically diverse sample of 1,375 young-adult university students completed retrospective measures of parental nurturance and involvement, and current measures of psychosocial adjustment and troubled ruminations about parents. Results indicated that reports of maternal and paternal nurturance and involvement were closely related in intact families but uncorrelated in divorced families. Across family forms, the total amount of nurturance or involvement received was positively associated with self-esteem, purpose in life, life satisfaction, friendship quality and satisfaction, and academic performance; and negatively related to distress, romantic relationship problems, and troubled ruminations about parents. Mother-father differences in nurturance and involvement showed a largely opposite set of relationships. Implications for family court practices are discussed. [source] MOTHERING, FATHERING, AND DIVORCE: THE INFLUENCE OF DIVORCE ON REPORTS OF AND DESIRES FOR MATERNAL AND PATERNAL INVOLVEMENT*FAMILY COURT REVIEW, Issue 3 2009Seth J. Schwartz The present study investigated the extent to which young adults' reports of,and desires for,maternal and paternal involvement differed between intact and divorced families. An ethnically diverse sample of 1,376 young adults completed measures of reported and desired mothering and fathering across 20 parenting domains. Results indicated that both reports of and desires for father involvement differed sharply by family form (intact versus divorced), whereas few family form differences emerged for reported or desired mother involvement. These findings are discussed in terms of implications for custody and access decisions within the family court system. [source] Sacred Practices in Highly Religious Families: Christian, Jewish, Mormon, and Muslim Perspectives,FAMILY PROCESS, Issue 2 2004Loren Marks Ph.D. Quantitative research examining linkages between family relationships and religious experience has increased substantially in recent years. However, related qualitative research, including research that examines the processes and meanings behind recurring religion-family correlations, remains scant. To address this paucity, a racially diverse sample (N=24) of married, highly religious Christian, Jewish, Mormon, and Muslim parents of school-aged children were interviewed regarding the importance of religious family interactions, rituals, and practices in their families. Mothers and fathers discussed several religious practices that were meaningful to them and explained why these practices were meaningful. Parents also identified costs and challenges associated with these practices. Interview data are presented in connection with three themes: (1) "practicing [and parenting] what you preach," (2) religious practices, family connection, and family communion, and (3) costs of family religious practices. The importance of family clinicians and researchers attending to the influence of religious practice in the lives of highly religious individuals and families is discussed. [source] Emotional vitality in infancy as a predictor of cognitive and language abilities in toddlerhoodINFANT AND CHILD DEVELOPMENT, Issue 4 2005Amanda J. Moreno Abstract Previous work by our group has shown that infant emotional vitality (EV), the lively expression of shared emotion both positive and negative, predicts cognitive and language abilities in toddlerhood. Specifically, infants who demonstrated a pattern of high emotional expression combined with high bids to their caregivers, fared significantly better on the Bayley II and Preschool Language Scales (PLS-3) at 2 years of age than infants who showed both low expression and low bids to mother. That study was conducted on a large, low-income, ethnically diverse sample. The current study was undertaken with a smaller but demographically similar sample as an effort to demonstrate the value of EV as a construct and to provide additional information about its links with later developmental outcomes. Replication that included a variation in the age at which EV was assessed provides support for the generalizability of the construct. In addition, this study examined EV's effects further into childhood than did the original study in order to insure they are not limited to a brief window in toddlerhood. The results indicate that over and above maternal psychological resources, EV expressed during positive/joyful and frustrating circumstances in 8-month-olds accounted for significant portions of variance in expressive language at 30 months and cognitive-developmental assessments at 24 and 36 months. This study supports EV as an important relational-emotional behaviour that increases experiences that optimize developmental outcomes. Successful replication suggests that EV holds promise as a construct with clinical utility for early interventions attempting to improve developmental outcomes in children from poor families. Copyright © 2005 John Wiley & Sons, Ltd. [source] Applying the Infant-Toddler Social & Emotional Assessment (ITSEA) and Brief-ITSEA in early interventionINFANT MENTAL HEALTH JOURNAL, Issue 6 2007Margaret J. Briggs-Gowan To examine the internal consistency and validity of the Infant-Toddler Social and Emotional Assessment (ITSEA) and Brief-ITSEA (BITSEA) parent-report questionnaires in an early intervention sample. A sociodemographically diverse sample of 192 parents of 11- to 36-month-old children referred to early intervention programs completed surveys containing the ITSEA, BITSEA, and Child Behavior Checklist (CBCL). Parents were interviewed with the Vineland Adaptive Behavior Scales. Evaluators blind to children's status on the ITSEA and BITSEA rated child behavior during developmental assessments. Finally, a subsample of 71 children was administered the Mullen Scales of Early Learning. Findings support the internal consistency of the ITSEA and BITSEA, with the majority of Cronbach's alphas above .70. Supporting validity, ITSEA and BITSEA problem scores correlated significantly with CBCL Internalizing and Externalizing scores (rs=.28 to .78), as well as with observational ratings of problem behaviors on constructs paralleling the ITSEA domains (rs=.21 to .45). In contrast, ITSEA Competence and BITSEA Competence demonstrated moderate negative associations with CBCL scores (rs=,.39 to ,.43). Finally, ITSEA Competence and BITSEA Competence correlated significantly with developmental level on the Mullen, Vineland Socialization, and observational ratings of competence (rs=.25 to .43). Emphasizing the importance of addressing social-emotional issues in early intervention settings, 58.6% of children had high social-emotional/behavioral problems and/or low competence on the ITSEA; 39.8% had high ITSEA Problems and 38.5% had low ITSEA Competence. Results indicate the need to assess social-emotional adjustment in early intervention settings and support the use of the ITSEA and BITSEA for this purpose. [source] Individualism,collectivism and the role of goal orientation in organizational trainingINTERNATIONAL JOURNAL OF TRAINING AND DEVELOPMENT, Issue 3 2009Altovise Rogers This research examines how individualism,collectivism and goal orientation impact training effectiveness through study of an internationally diverse sample of engineers who were undergoing technical training. In light of contemporary views of individualism,collectivism, we argue that collectivism will moderate the influence of learning and performance goal orientations on training by shaping the impact of one's perceived social context on existing performance concerns and goals. Using a sample from a large multinational corporation, we examined the effects of individualism,collectivism and goal orientation on training transfer intentions, motivation to learn, and test performance. Mixed support for our hypotheses was found. Collectivists were found to exhibit higher levels of training transfer intentions and motivation to learn. However, when collectivism was combined with a performance goal orientation, its effects on training outcomes were diminished. Applications for organizations and future extensions of the present research are discussed. [source] Simplifying Detection of Cognitive Impairment: Comparison of the Mini-Cog and Mini-Mental State Examination in a Multiethnic SampleJOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 5 2005Soo Borson MD Objectives: To compare detection of cognitive impairment using the Mini-Cog and Mini-Mental State Examination (MMSE) and to identify sociodemographic variables that influence detection in an ethnoculturally diverse sample. Design: Cross-sectional. Setting: A registry of the University of Washington Alzheimer's Disease Research Center Satellite. Participants: A heterogeneous community sample (n=371) of predominantly ethnic minority elderly assessed using a standardized research protocol, 231 of whom met criteria for dementia or mild cognitive impairment (MCI). Measurements: Demographic data, a standardized research protocol for cognitive assessment and dementia diagnosis, MMSE, and Mini-Cog. Results: Both screens effectively detected cognitive impairment, the Mini-Cog slightly better than the MMSE (P<.01). Overall accuracy of classification was 83% for the Mini-Cog and 81% for the MMSE. The Mini-Cog was superior in recognizing patients with Alzheimer-type dementias (P=.05). Low education negatively affected detection using the MMSE (P<.001), whereas education did not affect the Mini-Cog, and low literacy minimally affected it. Conclusion: The Mini-Cog detects clinically significant cognitive impairment as well as or better than the MMSE in multiethnic elderly individuals, is easier to administer to non-English speakers, and is less biased by low education and literacy. [source] Adherence to Pressure Ulcer Prevention Guidelines: Implications for Nursing Home QualityJOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 1 2003Debra Saliba MD OBJECTIVES: This study aims to assess overall nursing home (NH) implementation of pressure ulcer (PU) prevention guidelines and variation in implementation rates among a geographically diverse sample of NHs. DESIGN: Review of NH medical records. SETTING: A geographically diverse sample of 35 Veterans Health Administration NHs. PARTICIPANTS: A nested random sample of 834 residents free of PU on admission. MEASUREMENTS: Adherence to explicit quality review criteria based on the Agency for Healthcare Research and Quality Practice Guidelines for PU prevention was measured. Medical record review was used to determine overall and facility-specific adherence rates for 15 PU guideline recommendations and for a subset of six key recommendations judged as most critical. RESULTS: Six thousand two hundred eighty-three instances were identified in which one of the 15 guideline recommendations was applicable to a study patient based on a specific indication or resident characteristic in the medical record. NH clinicians adhered to the appropriate recommendation in 41% of these instances. For the six key recommendations, clinicians adhered in 50% of instances. NHs varied significantly in adherence to indicated guideline recommendations, ranging from 29% to 51% overall adherence across all 15 recommendations (P < .001) and from 24% to 75% across the six key recommendations (P < .001). Adherence rates for specific indications also varied, ranging from 94% (skin inspection) to 1% (education of residents or families). Standardized assessment of PU risk was identified as one of the most important and measurable recommendations. Clinicians performed this assessment in only 61% of patients for whom it was indicated. CONCLUSIONS: NHs' overall adherence to PU prevention guidelines is relatively low and is characterized by large variations between homes in adherence to many recommendations. The low level of adherence and high level of variation to many best-care practices for PU prevention indicate a continued need for quality improvement, particularly for some guidelines. [source] Psychological profile in oral lichen planusJOURNAL OF CLINICAL PERIODONTOLOGY, Issue 10 2005Kiro Ivanovski Abstract Aim: Oral lichen planus (OLP) is an oral lesion with an enigmatic etiology. To explore the possibility of psycho-somatization, we evaluated the psychological personality profiles of OLP patients. Methods: Twenty patients with reticular; 20 with erosive form of OLP, and 25 controls were tested with the psychological Minnesota Multiphasic Personality Inventory (MMPI)-202 test. Eight clinical scales (hypochondriasis, depression, hysteria, psychopathic deviate, paranoia, psychasthenia, schizophrenia, and hypomania) as well as cortisol level, CD3, CD4, CD8, and CD16 markers by group were compared. Psychosomatization was evaluated by the use of internalization ratio (IR) Index. Results: A characteristic MMPI profile was noted in the OLP groups with high IR index value. Significant differences among the groups were detected for cortisol, CD4, CD8, and CD16 counts. Mean values for hypochondriasis, depression, and hysteria were all significantly different with significantly higher mean scores for both reticular and erosive OLP subjects compared with controls. Conclusions: Prolonged emotive stress in many OLP patients may lead to psychosomatization and may contribute to the initiation and clinical expression of this oral disorder. Clinical significance: If additional research involving a larger and more diverse sample of patients confirms these findings, clinical trials will be needed to determine whether adjunctive psychological intervention provides a benefit in treating patients with OLP. [source] Effects of physical and verbal aggression, depression, and anxiety on drinking behavior of married partners: a prospective and retrospective longitudinal examinationAGGRESSIVE BEHAVIOR, Issue 4 2009Margaret K. Keiley Abstract In an ethnically diverse sample of 195 married couples, we conducted a latent factor growth analysis to investigate the longitudinal link (4 time points over 4˝ years) between marital aggression (physical and verbal aggression self- and partner-reports) and individual internalizing symptoms (depression and anxiety) as they relate to trajectories of alcohol use among husbands and wives. Alcohol use was operationalized as a latent factor with self- and partner reports of problem drinking as measured by the Michigan Alcoholism Screening Test and the Alcohol Dependence Scale. Verbal aggression by husbands or wives, by itself, has no effect on their alcohol use over time. In conjunction with depression, however, verbally aggressive husbands do have elevated drinking levels. The effects of husbands' and wives' physical aggression on their own and their partners' drinking behavior were also significant. This study is one of the first to examine the change over time in alcohol use for marital partners as related to marital aggression and internalizing symptoms. Our results shed light on areas of marital functioning (aggression, internalizing, alcohol use) that have not been investigated in conjunction with each other in a longitudinal design. Aggr. Behav. 35:296,312, 2009. © 2009 Wiley-Liss, Inc. [source] The effects of alcohol and the salience of aggressive cues on triggered displaced aggressionAGGRESSIVE BEHAVIOR, Issue 1 2008Thomas F. Denson Abstract Alcohol increases the aggression-augmenting effects of provocation. Theories of alcohol and aggression suggest that impaired cognitive processing induced by acute intoxication leads individuals to process aggression-inducing social cues differently depending on whether they are high or low in salience. We examined the effects of intoxication and aggressive cue salience within the triggered displaced aggression paradigm. An ethnically diverse sample of 74 primarily young adult participants (40 men and 34 women; M=23.28, SD=3.14 years) were recruited from the university community and surrounding area. All participants were provoked by an experimenter, randomly assigned to a 2 (alcohol condition: alcohol vs. placebo) × 2 (trigger salience: high vs. low salience) between-subjects design, and then given the opportunity to aggress against the undeserving triggering agent. As expected, intoxication combined with a salient triggering cue elicited the most displaced aggression among all conditions. These results provide the first evidence that the effect of alcohol on triggered displaced aggression is moderated by the salience of the triggering event. Aggr. Behav. 34:25,33, 2008. © 2007 Wiley-Liss, Inc. [source] Self-esteem, academic self-concept, and aggression at schoolAGGRESSIVE BEHAVIOR, Issue 2 2007Laramie D. Taylor The present study explores the relation between academic self-concept, self-esteem, and aggression at school. Longitudinal data from a racially diverse sample of middle-school students were analyzed to explore how academic self-concept influenced the likelihood of aggressing at school and whether high self-concept exerted a different pattern of influence when threatened. Data include self-reported academic self-concept, school-reported academic performance, and parent-reported school discipline. Results suggest that, in general, students with low self-concept in achievement domains are more likely to aggress at school than those with high self-concept. However, there is a small sample of youth who, when they receive contradictory information that threatens their reported self-concept, do aggress. Global self-esteem was not found to be predictive of aggression. These results are discussed in the context of recent debates on whether self-esteem is a predictor of aggression and the use of a more proximal vs. general self-measure in examining the self-esteem and aggression relation. Aggr. Behav. 32:1,7, 2007. © 2006 Wiley-Liss; Inc. [source] Social-cognitive mediators of the relation of environmental and emotion regulation factors to children's aggressionAGGRESSIVE BEHAVIOR, Issue 5 2004Dara R. Musher-Eizenman Abstract Tested a theoretical model in which social cognitions about aggression partially mediated the relation of environmental and emotion regulation factors to children's aggressive behavior. An ethnically diverse sample of 778 children (57% girls) in grades 4,6 from both urban and suburban schools participated. Measures included exposure to aggression (seeing/hearing about aggression, victimization), emotion regulation (impulsivity, anger control), social cognitions about aggression (self-evaluation, self-efficacy, retaliation approval, aggressive fantasizing, caring about consequences), and aggressive behavior. Results supported the hypothesis that social cognitions mediate the relations of exposure to aggression and anger control to aggressive behavior. Also, social cognitions about direct and indirect aggression differentially predicted the respective behaviors with which they are associated. That is, social cognitions about direct aggression were mediators of direct aggressive behavior, whereas social cognitions about indirect aggression were mediators of indirect aggressive behavior. Finally, gender moderated the relations among the variables such that for girls, retaliation approval beliefs were a strong mediator, whereas for boys, self-evaluation was more important. Aggr. Behav. 30:389,408, 2004. © 2004 Wiley-Liss, Inc. [source] Application of Three Dental Methods of Adult Age Estimation from Intact Single Rooted Teeth to a Peruvian SampleJOURNAL OF FORENSIC SCIENCES, Issue 3 2008Douglas H. Ubelaker Ph.D. Abstract:, Methods of estimating adult age at death from such dental features as root translucency, root length, and the extent of periodontosis in intact single rooted teeth have proven useful in studies of modern individuals, especially in estimating age in older adults. Questions remain however, concerning the impact of regional and population variation on accuracy. To examine this issue, three approaches to age estimation were applied to a diverse sample of 100 individuals from Peru. Mean errors of estimation for all three approaches were similar to those originally reported, suggesting minimal impact of population variation of the features measured. A new regression equation, specifically for Peruvian samples, is provided. [source] The Influence of Ethnic Discrimination and Ethnic Identification on African American adolescents' School and Socioemotional AdjustmentJOURNAL OF PERSONALITY, Issue 6 2003Carol A. Wong Does African American ethnic identity buffer these relations? This paper addresses these two questions using two waves of data from a longitudinal study of an economically diverse sample of African American adolescents living in and near a major East Coast metropolis. The data were collected at the beginning of the 7th grade and after the completion of the 8th grade. As expected, experiences of racial discrimination at school from one's teachers and peers predicts declines in grades, academic ability self-concepts, academic task values, mental health (increases in depression and anger, decreases in self-esteem and psychological resiliency), and increases in the proportion of one's friends who are not interested in school and who have problem behaviors. A strong, positive connection to one's ethnic group (our measure of ethnic identity) reduced the magnitude of the association of racial discrimination experiences with declines in academic self-concepts, school achievement, and perception of friends' positive characteristics, as well as the association of the racial discrimination experiences with increases in problem behaviors. [source] Demonstrating Successful Aging Using the International Collaborative Study for Oral Health OutcomesJOURNAL OF PUBLIC HEALTH DENTISTRY, Issue 4 2000Kathryn A. Atchison DDS Abstract As the lifespan increases and people are faced with 15 to 20 years of "old age," we ask what one considers successful aging with respect to oral health. We propose a comprehensive combination of outcome variables, maintenance of teeth, manageable periodontal condition, positive perceived oral health, satisfaction with their access to and receipt of dental services, and minimal functional problems, that together comprise a definition of successful aging. The International Collaborative Study for Oral Health Outcomes provides a data set for exploring the oral health of a diverse sample of older adults in US and international sites using the modified Andersen Behavioral Model. The percent of adults who report no natural teeth ranged from 16 percent in San Antonio to 59 percent in New Zealand. Seventy percent or more of the adults from each site rated their oral health as good/fair or better except in Poland. The current cohort of older adults is faring better on some indicators than others; nevertheless, ethnic minorities and poorer countries still demonstrate inequities. Dentistry must attempt to educate individuals early in their lifespan that a combination of personal oral health practices and current dental techniques offers the potential for successful oral health throughout one's lifetime. [source] Factors associated with middle and secondary students' perceived science competenceJOURNAL OF RESEARCH IN SCIENCE TEACHING, Issue 6 2007Ronald A. Beghetto The aim of the present study was to gain a better understanding of students' perceived science competence by examining potentially related beliefs and perceptions in a diverse sample of middle and secondary students (N,=,1289). Results of hierarchical regression analysis showed that students' perceived science competence was related to: (a) students' age, gender, and ethnicity; (b) students' mastery and performance,approach goals; (c) students' self-perceptions of their ability to generate creative ideas (i.e., creative self-efficacy); and (d) students' perceptions of teacher support and press (i.e., challenging academic demands). Of all these factors, creative self-efficacy was found to have the strongest positive relationship with students' perceived science competence. Implications for subsequent research are discussed. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 800,814, 2007 [source] A Latent Growth Curve Analysis of the Structure of Aggression, Drug Use, and Delinquent Behaviors and Their Interrelations Over Time in Urban and Rural AdolescentsJOURNAL OF RESEARCH ON ADOLESCENCE, Issue 2 2005Albert D. Farrell Latent growth curve analysis was used to examine the structure and interrelations among aggression, drug use, and delinquent behavior during early adolescence. Five waves of data were collected from 667 students at three urban middle schools serving a predominantly African American population, and from a more ethnically diverse sample of 950 students at four rural middle schools. One set of models focused on changes in individual behaviors; the other on changes in a global problem behavior factor. Models with separate growth trajectories for aggression, drug use, and delinquent behavior provided the best fit for both samples and revealed relations between initial levels of aggression and subsequent changes in the other behaviors. Boys and girls differed in their initial levels of these behaviors, but not their patterns of change. Differences in growth curve trajectories were found across samples. These findings have important implications for assessment and prevention of problem behaviors in adolescents. [source] Peripubertal Girls' Romantic and Platonic Involvement With Boys: Associations With Body Image and Depression SymptomsJOURNAL OF RESEARCH ON ADOLESCENCE, Issue 1 2004Laura Compian This study explored the relationship of both romantic and platonic involvement with boys, as well as pubertal status, to body image and depression symptoms among an ethnically diverse sample of sixth-grade girls. Participants were 157 early adolescent girls (ages 10,13) who completed self-report measures designed to assess girls' level of involvement with boys, pubertal status, and psychological adjustment. Girls' degree of romantic involvement was positively associated with higher depression scores. More advanced pubertal status was associated with both lower body image satisfaction and higher depression scores. A significant interaction between platonic involvement and pubertal status emerged. Girls who were less sexually mature but who also reported more platonic involvement with boys reported greater body image satisfaction. These findings suggest that the type of involvement with boys (romantic vs. platonic) and a girl's pubertal status influence psychological adjustment. [source] Scaling of plantar pressures in mammalsJOURNAL OF ZOOLOGY, Issue 3 2009F. Michilsens Abstract The interaction of the limbs with the substrate can teach a lot about an animal's gait mechanics. Unlike ground-reaction forces, plantar pressure distributions are rarely studied in animals, but they may provide more detailed information about the loading patterns and locomotor function of specific anatomical structures. With this study, we aim to describe pressures for a large and diverse sample of mammalian species, focusing on scaling effects. We collected dynamic plantar pressure distributions during voluntary walking in 28 mammal species. A dynamic classification of foot use was made, which distinguished between plantiportal, digitiportal and unguliportal animals. Analysis focused on scaling effects of peak pressures, peak forces and foot contact areas. Peak pressure for the complete mammal sample was found to scale to (mass)1/2, higher than predicted assuming geometric similarity, and we found no difference between the different types of foot use. Only the scaling of peak force is dependent on the dynamic foot use. We conclude that plantar peak pressure rises faster with mass than expected, regardless of the type of foot use, and scales higher than in limb bones. These results might explain some anatomical and behavioural adaptations in graviportal animals. [source] The association of socioeconomic status and psychosocial and physical workplace factors with musculoskeletal injury in hospital workers,AMERICAN JOURNAL OF INDUSTRIAL MEDICINE, Issue 4 2007Marion Gillen RN Abstract Background The combined effect of socioeconomic, organizational, psychosocial, and physical factors on work-related musculoskeletal disorders (WRMSDs) were studied in a heterogeneous, socioeconomically diverse sample (cases and their matched referents) of hospital workers. Methods Cases were defined by a new acute or cumulative work-related musculoskeletal injury; referents were matched by job group, shift length, or at random. Information was obtained through telephone interviews and on-site ergonomics observation. Questionnaire items included sociodemographic variables, lost work time, work effectiveness, health status, pain/disability, and psychosocial working conditions using Effort Reward Imbalance (ERI) and Demand-Control (DC) models. Two multivariate models were tested: Model 1 included occupation as a predictor; Model 2 included education,income as a predictor. Results Cases reported greater pain, disability, lost time, and decreased work effectiveness than the referents. Model 1 was statistically significant for neck/upper extremity injury (Chi-square,=,19.3, P,=,0.01), back/lower extremity injury (Chi-square,=,14.0, P,=,0.05), and all injuries combined (Chi-square,=,25.4, P,=,0.001). "Other Clinical" occupations (34% mental health workers) had the highest risk of injury (OR 4.5: 95%CI, 1.7,12.1) for all injuries. The ERI ratio was a significant predictor for neck and upper extremity (OR 1.5: 95%CI, 1.1,1.9) and all injuries (OR 1.3; 95%CI, 1.04,1.5), per SD change in score. Conclusions In this study, the risk of WRMSDs was more strongly influenced by specific psychosocial and physical job-related exposures than by broad socioeconomic factors such as education and income. Am. J. Ind. Med. 2007. © 2007 Wiley-Liss, Inc. [source] Cyber Bullying Behaviors Among Middle and High School StudentsAMERICAN JOURNAL OF ORTHOPSYCHIATRY, Issue 3 2010Faye Mishna Little research has been conducted that comprehensively examines cyber bullying with a large and diverse sample. The present study examines the prevalence, impact, and differential experience of cyber bullying among a large and diverse sample of middle and high school students (N = 2,186) from a large urban center. The survey examined technology use, cyber bullying behaviors, and the psychosocial impact of bullying and being bullied. About half (49.5%) of students indicated they had been bullied online and 33.7% indicated they had bullied others online. Most bullying was perpetrated by and to friends and participants generally did not tell anyone about the bullying. Participants reported feeling angry, sad, and depressed after being bullied online. Participants bullied others online because it made them feel as though they were funny, popular, and powerful, although many indicated feeling guilty afterward. Greater attention is required to understand and reduce cyber bullying within children's social worlds and with the support of educators and parents. [source] Stature estimation formulae for indigenous North American populationsAMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 2 2010Benjamin M. Auerbach Abstract Stature estimation methods for adult indigenous humans from the Americas have generally relied on a limited number of regression equations. The available equations, however, are not broadly applicable to the diversity of the populations that lived in the New World prior to European colonization. Furthermore, some equations that have been used were originally derived from inappropriate reference samples, such as the "Mongoloid" group measured by Trotter and Gleser (Am J Phys Anthropol 16 [1958] 79-123). This study develops new stature estimation equations for long bones of the lower limb from a geographically diverse sample of North American archaeological sites. Statures were reconstructed from 967 skeletons from 75 archaeological sites using the revised Fully anatomical technique (Raxter et al., Am J Phys Anthropol 130 [2006] 374-384). Archaeological samples were grouped according to general body proportions, using relative tibia and femur length to stature as guides. On the basis of differences in these proportions, three broad groupings were identified: a high latitude "arctic" group, a general "temperate" group, and a Great Plains group. Sex-specific ordinary least squares regression formulae were developed based on femoral and tibial lengths for each of these groups. Comparisons of the new stature estimation equations with previously available equations were conducted using several archaeological test samples. In most cases, the new stature estimation equations are more precise than those previously available, and we recommend their use throughout most of North America. The equations developed by Genovés for Mesoamerican and US Southwest samples are a useful alternative for these regions. Applicability of the new equations to South American samples awaits further testing. Am J Phys Anthropol, 2010. © 2009 Wiley-Liss, Inc. [source] Thematic analysis of the experience of making a decision to place a family member with Alzheimer's disease in a special care unit,RESEARCH IN NURSING & HEALTH, Issue 6 2001Howard Karl Butcher Abstract The purpose of this study was to provide an in-depth description of the experience of making the decision to place a family member in a special care unit among a diverse sample of family caregivers. To achieve purposive maximum variation of the sample, the sample of 30 family caregivers was chosen from an original study of 256 family caregivers. The sample was randomly stratified according to ethnicity, gender, and relationship to the care receiver. Three independent researchers used Luborsky's method of thematic analysis to analyze the interviews. After mutual consensus, 1565 themes (descriptive statements) were identified and synthesized into 21 topics. The topics were then synthesized into four patterns describing the decision-making experience: moving toward the unavoidable decision, struggling with the decision, seeking reassurance, and remaining connected. © 2001 John Wiley & Sons, Inc. Res Nurs Health 24:470,480, 2001 [source] Measuring psychological, social, and environmental influences on leisure-time physical activity among adultsAUSTRALIAN AND NEW ZEALAND JOURNAL OF PUBLIC HEALTH, Issue 1 2007Nicola W. Burton Many of the self-administered scales for measuring physical activity (PA) influences were originally developed for vigorous-intensity exercise, focus on only one domain of influence, and have not been evaluated for both reliability and validity using population-based samples. Objective: This study describes the factorial validity and internal reliability of scales for measuring individual-level psychological, social, and environmental influences on leisure-time PA among adults in the general population. Method: Constructs were identified from a literature review and formative research with a socio-economically diverse sample. Items were generated using previously developed scales and interview data. New items were pre-tested using reliability and principal components analyses, with data collected from a mail survey sent to a randomly selected population-based sample. Qualitative feedback was obtained from a convenience sample and expert panel. A second mail survey provided data for principal components and reliability analyses. Results: Twenty-eight scales were factorially derived and 24 had acceptable or marginally acceptable levels of internal consistency with Cronbach's alpha values ranging from 0.65 to 0.91. Conclusions and Implications: The 24 scales are suitable for researchers and practitioners interested in measuring individual-level influences on PA that are consistent with Social Cognitive Theory. More research is required to assess predictive validity, sensitivity to change and test/re-test reliability. [source] Fathers and Mothers at Play With Their 2- and 3-Year-Olds: Contributions to Language and Cognitive DevelopmentCHILD DEVELOPMENT, Issue 6 2004Catherine S. Tamis-LeMonda Father,child and mother,child engagements were examined longitudinally in relation to children's language and cognitive development at 24 and 36 months. The study involved a racially/ethnically diverse sample of low-income, resident fathers (and their partners) from the National Early Head Start evaluation study (n=290). Father,child and mother,child engagements were videotaped for 10 min at home during semistructured free play, and children's language and cognitive status were assessed at both ages. Fathers' and mothers' supportive parenting independently predicted children's outcomes after covarying significant demographic factors. Moreover, fathers' education and income were uniquely associated with child measures, and fathers' education consistently predicted the quality of mother,child engagements. Findings suggest direct and indirect effects of fathering on child development. [source] Measurement Properties of the MacArthur Communicative Development Inventories at Ages One and Two YearsCHILD DEVELOPMENT, Issue 2 2000Heidi M. Feldman In a prospective study of child development in relation to early-life otitis media, we administered the MacArthur Communicative Development Inventories (CDI) to a large (N = 2,156), sociodemographically diverse sample of 1- and 2-year-old children. As a prerequisite for interpreting the CDI scores, we studied selected measurement properties of the inventories. Scores on the CDI/Words and Gestures (CDI-WG), designed for children 8 to 16 months old, and on the CDI/Words and Sentences (CDI-WS), designed for children 16 to 30 months old, increased significantly with months of age. On several scales of both CDI-WG and CDI-WS, standard deviations approximated or exceeded mean values, reflecting wide variability in results. Statistically significant differences in mean scores were found according to race, maternal education, and health insurance status as an indirect measure of income, but the directionality of differences was not consistent across inventories or across scales of the CDI-WS. Correlations between CDI-WG and CDI-WS ranged from .18 to .39. Our findings suggest that the CDI reflects the progress of language development within the age range 10 to 27 months. However, researchers and clinicians should exercise caution in using results of the CDI to identify individual children at risk for language deficits, to compare groups of children with different sociodemographic profiles, or to evaluate the effects of interventions. [source] | ||||||||||||||||||||||