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Meaningful Differences (meaningful + difference)
Selected AbstractsDose-Dependent Immunohistochemical Changes in Rat Cornea and Retina after Oral Methylphenidate AdministrationANATOMIA, HISTOLOGIA, EMBRYOLOGIA, Issue 2 2009E. Tunc Summary Methylphenidate hydrochloride (MPH), more commonly known as Ritalin, is a piperidine derivative and is the drug most often used to treat attention deficit/hyperactivity disorder, one of the most common behavioural disorders of children and young adults. The aim of this study was to investigate dose-dependent immunohistochemical Dopamine 2 receptor (D2) expression and apoptosis in the rat cornea and cornea. In this study, 27 female pre-pubertal Wistar albino rats, divided into three different dose groups (5, 10 and 20 mg/kg) and their control groups, were used. They were treated orally with methylphenidate dissolved in saline solution for 5 days per week during 3 months. At the end of the third month, after perfusion fixation, eye tissue was removed. Paraffin sections were collected for immunohistochemical and terminal deoxynucleotidyl-transferase-mediated dUTP-biotin nick end labelling assay studies. In our study, we observed that the cornea D2 receptor reactivity showed a dose-related increase after MPH treatment, especially in basal cells of the epithelium and a dose-dependent decrease in the retinal ganglion cell which was statistically meaningful. Analysis of the cornea thickness results showed no meaningful difference between groups. Apoptotic cell number showed a meaningful increase in the high dose treated group compared to the other groups of the study. The data suggest that Ritalin has degenerative effect on the important functional part of the eye, such as cornea and retina and its activating dopaminergic mechanism via similar neuronal paths, functionally and structurally, to induce morphological changes. As a result, we believe that this morphological changes negatively effecting functional organization of the affected cornea and retina. [source] Testing Homogeneity of Two Zero-inflated Poisson PopulationsBIOMETRICAL JOURNAL, Issue 1 2009Siu Keung Tse Abstract The problem of testing treatment difference in the occurrence of a safety parameter in a randomized parallel-group comparative clinical trial under the assumption that the number of occurrence follows a zero-inflated Poisson (ZIP) distribution is considered. Likelihood ratio tests (LRT) for homogeneity of two ZIP populations are derived under the hypotheses that (i) there is no difference in inflation parameters, (ii) there is no difference in non-zero means; and (iii) there is no difference in both inflation parameters and non-zero means. Approximate formulas for sample size calculation are also obtained for achieving a desired power for detecting a clinically meaningful difference under the corresponding alternative hypotheses. An example concerning the assessment of the gastrointestinal (GI) safety in terms of the number of erosion counts of a newly developed compound for the treatment of osteoarthritis and rheumatoid arthritis is given for illustration purpose (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source] Patient-reported outcomes of psoriasis improvement with etanercept therapy: results of a randomized phase III trialBRITISH JOURNAL OF DERMATOLOGY, Issue 6 2005G.G. Krueger Summary Background, Etanercept, a soluble tumour necrosis factor receptor, lessens the severity of psoriasis as measured by physician-reported clinical outcomes. Equally important is the patient perspective on the effect of etanercept therapy on daily life. Objectives, To assess patient-reported outcomes (PROs) in patients with psoriasis receiving etanercept therapy. Methods, In this multinational, randomized, phase III trial, patients with psoriasis received placebo (n = 193), etanercept 50 mg per week (n = 196) or etanercept 50 mg twice weekly (n = 194) during the initial 12-week, double-blind period. Thereafter, all patients received open-label etanercept (50 mg per week). The following PROs were assessed: Dermatology Life Quality Index (DLQI), Short Form-36 Health Survey (SF-36), patient rating of pruritus, and patient global assessment of psoriasis. Results, At week 12, DLQI total score improved by 65,70% in patients receiving etanercept compared with 6% in patients receiving placebo (P < 0·0001), and improvement in DLQI was clinically meaningful (, 5-point improvement or 0 score) for 72,77% of patients receiving etanercept therapy. All DLQI and SF-36 subscales and the SF-36 physical and mental component summary scores demonstrated significantly greater improvement with etanercept therapy than with placebo, illustrating that etanercept benefits patients with psoriasis across multiple domains that contribute to health-related quality of life. With etanercept therapy, distributions of patient ratings of pruritus and global assessment of disease shifted from moderate to severe (baseline) to minimal to good (week 12). Etanercept-induced benefits of PROs were maintained for patients who reduced their dose after 12 weeks. Conclusions, Etanercept therapy improves PROs in patients with psoriasis and makes a meaningful difference to their lives. These results support the efficacy profile of physician-reported clinical measures while providing a more complete understanding of the benefits experienced by patients with psoriasis treated with etanercept. [source] Effects of desmopressin (DDAVP) on memory impairment following electroconvulsive therapy (ECT)ACTA NEUROPSYCHIATRICA, Issue 3 2004Ebrahim Abdollahian Background:, Memory impairment is a common adverse effect of electroconvulsive therapy (ECT). Studies on animals and humans suggest that vasopressin improves the cognitive function, and positive effects of desmopressin on memory and learning have been reported. This research was performed for evaluation of the effects of desmopressin in the prevention of memory impairment following ECT. Methods:, This randomized, double-blind controlled clinical trial with placebo administration was performed on 50 patients with psychiatric disorders who were candidates for ECT. Subjects in the case group received 60 µm of intranasal desmopressin daily (in three doses of 20 µm). For the control group 0.9% saline solution was administered in the same way. Memory function was evaluated using Wechsler's Memory Scale three times a week (the first time before the start of ECT and the second and third times after the third and sixth sessions, respectively). Results were analyzed by t -test and Paired t -test. Results:, The mean age of patients was 29 years (range 20,40). During the course of ECT, patients in the control group demonstrated a meaningful decrease in memory scores (from a base score of 80.15,75.45 in the second test and 72.60 in the third test). Despite this, a meaningful increase in memory scores was observed during the treatment with desmopressin in the case group (from a base score of 73.27,75.70 and 79.13 in the second and the third tests, respectively). There was a meaningful difference between the two groups (P < 0.0001). Conclusion:, This study confirms the protective effect of desmopressin against memory impairment. The results confirm that memory impairment is a common side-effect of ECT and suggest that desmopressin may prevent ECT-induced memory impairment by its effects on memory and the learning process. [source] Validity, reliability, and responsiveness of the EQ-5D in inflammatory bowel disease in GermanyINFLAMMATORY BOWEL DISEASES, Issue 1 2010Renee G. Stark MD Abstract Background: The EuroQol (EQ)-5D questionnaire is a generic instrument measuring health-related quality of life. Its validity, reliability, and responsiveness were assessed in a large sample of Crohn's disease (CD) and ulcerative colitis (UC) patients. Methods: The EQ-5D was completed initially (270 CD and 232 UC subjects) and after 4 weeks (447 subjects) with a transition question rating health change. Responsiveness of EQ visual analog scale (EQ-VAS) and the United Kingdom (UK-index) and German EQ-5D index (EQ-index) scores to reported changes in health was evaluated by standardized response means (SRM) and meaningful differences (MDs). Results: EQ-VAS and EQ-index scores correlated well with disease activity indices and differed significantly between active disease and remission groups. All scores were reliable in test,retest (ICC: EQ-VAS: 0.89; UK-index: 0.76; German EQ-index: 0.72). According to SRM, EQ-VAS was more responsive for deterioration in health than for improvement in health and was more responsive than index scores. Index scores were most responsive for deterioration in health in subjects in remission and for improved health in subjects with active disease. MDs for improved health (EQ-VAS: 10.9; UK EQ-index: 0.076; German EQ-index: 0.050) and deteriorated health (EQ-VAS: ,14.4; UK EQ-index: ,0.109; German EQ-index: ,0.067) were significant, but MD of EQ-VAS also differed significantly according to disease activity. Conclusions: The EQ-5D generates valid, reliable, and responsive preference-based valuations of health in CD and UC. EQ-VAS scores were more responsive than EQ-5D index scores. Thus, small health differences that are important from the patient's perspective may not be reflected in the EQ-index. Inflamm Bowel Dis 2010 [source] The DSM-IV ,minor depression' disorder in the oldest-old: prevalence rate, sleep patterns, memory function and quality of life in elderly people of Italian descent in Southern BrazilINTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY, Issue 2 2002Flávio M. F. Xavier Abstract Objectives (1) To describe the prevalence of minor depression in a community-dwelling population aged 80 years and over. (2) To compare the sleep pattern, memory function and the prevalence rate of other psychiatric diagnoses between normal controls and subjects with minor depressive disorder. Design A random representative sample (sample,=,77 subjects/county population of oldest-old,=,219,35%) aged 80 years or more was selected from the county of Veranópolis in the Brazilian rural southern region. Of this group, eight subjects who met the DSM-IV criteria for minor depression, and 50 subjects without diagnosed delirium disorder, cognitive or affective problems were compared. Results The prevalence rate of minor depression was 12%. Subjects with this diagnosis were more likely to complain about sleep and memory problems than elderly people without any other affective disorder (major depression or dysthymic disorder). Otherwise, objective evaluation of these two areas, memory and sleep, did not show differences between the groups. Moreover, in terms of factors such as life satisfaction and some domains from the Short-form 36 Quality of Life Scale (SF-36), subjects with minor depression presented worse self-reported evaluations. Female gender was associated (p,=,0.01) with a more frequent presence of minor depression disorder, and those with this diagnosis were more likely to have co-morbidity with generalized anxiety disorder (p,=,0.007) when compared with elderly people without any depressive disorder. Conclusion In this study, minor depression has been significantly associated with lower life satisfaction and worse indexes of life quality. The results supported the current concept that minor depression is prevalent in later life, especially among the oldest-old. Subjects with minor depression had worse self-reported opinions about memory and sleep patterns, but when these variables were objectively measured, no meaningful differences could be determined by the research team. Female gender and the concurring presence of generalized anxiety disorder were both significantly associated with the presence of minor depression diagnosis. Copyright © 2002 John Wiley & Sons, Ltd. [source] Effectiveness of cutaneous warming systems on temperature control: meta-analysisJOURNAL OF ADVANCED NURSING, Issue 6 2010Cristina Maria Galvão galvão c.m., liang y. & clark a.m. (2010) Effectiveness of cutaneous warming systems on temperature control: meta-analysis. Journal of Advanced Nursing,66(6), 1196,1206. Abstract Title.,Effectiveness of cutaneous warming systems on temperature control: meta-analysis. Aim., This paper is a report of a meta-analysis to identify the effectiveness of different types of cutaneous warming systems in temperature control for patients undergoing elective surgery. Background., Hypothermia is a common and serious complication of surgery. Different cutaneous warming systems are used to prevent hypothermia during surgery but there have been no previous meta-analyses of the effectiveness of different warming systems in controlling temperature. Data sources., We conducted a search of the CINAHL (2000 to April 2009), Medline (2000 to April 2009), Embase (2000 to April 2009) and the Cochrane Register of Controlled Trials (2000 to April 2009) databases for randomized controlled trials published in English, Spanish and Portuguese. The primary outcome measure of interest was core body temperature. Methods., A systematic review incorporating meta-analysis was carried out. Results., From 329 papers, 23 trials compared warming systems. Forced-air warming systems had a strong tendency towards superior temperature control over passive insulation via cotton blankets (mean difference: 0·29°C; 95% confidence interval: ,0·02 to 0·59, three trials 292 patients) and radiant warming systems (mean difference: 0·16°C; 95% confidence interval: ,0·01 to 0·33, three trials, 161 patients). However, circulating water garments tended to be more effective than forced-air warming systems (mean difference: ,0·73°C; 95% confidence interval: ,1·51 to 0·05, I2 = 97%; four trials, 198 patients). Pooled results approached statistical significance and indicated clinically meaningful differences in temperature control. Conclusion., Current evidence suggests that circulating water garments offer better temperature control than forced-air warming systems, and both are more effective than passive warming devices. [source] Do aggression and rule-breaking have different interpersonal correlates?AGGRESSIVE BEHAVIOR, Issue 6 2009A study of antisocial behavior subtypes, hostile perceptions of others, negative affect Abstract There is mounting evidence that physical aggression and nonaggressive, rule-breaking delinquency constitute two separable though correlated subtypes of antisocial behavior. Even so, it remains unclear whether these behavioral subtypes have meaningfully different interpersonal correlates, particularly as they are subsumed within the same broad domain of antisocial behavior. To evaluate this, we examined whether hostile perceptions of others (assessed via exposure to a series of neutral unknown faces) were linked to level and type of antisocial behavior aggression vs. rule-breaking, and moreover, whether this association persisted even when also considering the common association with negative affect (as manipulated via written recollection of one's best and worst life experiences). Analyses revealed that aggression, but not rule-breaking, was uniquely tied to hostile perceptions of others. Furthermore, this association persisted over and above the common association of both hostile perceptions and aggression with negative affect (at both trait and state levels). Such results provide additional support for clinically meaningful differences between the behavioral subtypes of aggression and nonaggressive rule-breaking and for the independent role of hostile perceptions in aggressive behavior. Aggr. Behav. 35:453,461, 2009. © 2009 Wiley-Liss, Inc. [source] Towards a typology of computer use in primary educationJOURNAL OF COMPUTER ASSISTED LEARNING, Issue 3 2007J. Tondeur Abstract, In the present study, we reject the view that computer use can be studied as an isolated variable in a learning environment. Our main objective is to develop an instrumental tool to measure different types of educational computer use in the classroom. This builds on a comprehensive review of the literature about computer use in education. This review helped to construct a questionnaire to identify a typology of computer use in primary education. In addition, the questionnaire was enriched by input of experts in this field. The questionnaire was presented to a sample of 352 primary school teachers. The input from a first subsample was used to carry out an exploratory factor analysis; the second subsample was used to verify the identified factor structure via confirmatory factor analysis. A three-factor structure of computer use in primary education was identified: ,the use of computers as an information tool', ,the use of computers as a learning tool,' and ,learning basic computer skills'. The three-factor structure was confirmed in the confirmatory factor analysis. The results underpin a number of meaningful differences in the current practice of computer use in primary education. [source] Personal Goals in Social Roles: Divergences and Convergences Across Roles and Levels of AnalysisJOURNAL OF PERSONALITY, Issue 1 2000Kennon M. Sheldon Most contemporary personal goal research aggregates across goals, perhaps masking important differences between goals. We assessed this risk by examining both similarities and differences between the goals that participants pursued in five important social roles. Previous relevant findings (Cantor, Norem, Niedenthal, Langston, & Brower, 1987) and self-determination theory (Deci & Ryan, 1985) were used to predict between-role differences in goal appraisal dimensions. Although theoretically meaningful differences were found across child, employee, romantic, friendship, and student goals, and also across within- and between-subject levels of analysis, all goals were essentially the same in one important way: Making longitudinal progress in them predicted positive change in accompanying role-circumstances and role-satisfaction (excepting friendship goals). This indicates that researchers do not necessarily lose information by aggregating, and affirms that goal-attainment is generally desirable. [source] A Tiered Intervention Model for Early Vocabulary Instruction: The Effects of Tiered Instruction for Young Students At Risk for Reading DisabilityLEARNING DISABILITIES RESEARCH & PRACTICE, Issue 3 2010Paige C. Pullen Vocabulary knowledge at school entry is a robust predictor of later reading achievement. Many children begin formal reading instruction at a significant disadvantage due to low levels of vocabulary. Until recently, relatively few research studies examined the efficacy of vocabulary interventions for children in the early primary grades (e.g., before fourth grade), and even fewer addressed vocabulary intervention for students at increased risk for reading failure. In more recent work, researchers have begun to explore ways in which to diminish the "meaningful differences" in language achievement noted among children as they enter formal schooling. This article provides a review of a particularly effective model of vocabulary intervention based on shared storybook reading and situates this model in a context of tiered intervention, an emerging model of instructional design in the field of special education. In addition, we describe a quasi-experimental posttest-only study that examines the feasibility and effectiveness of the model for first-grade students. Participants were 224 first-grade students of whom 98 were identified as at risk for reading disability based on low levels of vocabulary. Results of a multivariate analysis of variance revealed significant differences on measures of target vocabulary knowledge at the receptive and context level, suggesting that students at risk for reading failure benefit significantly from a second tier of vocabulary instruction. Implications for classroom practice as well as future research are provided. [source] Steller sea lions Eumetopias jubatus and nutritional stress: evidence from captive studiesMAMMAL REVIEW, Issue 4 2009DAVID A. S. ROSEN ABSTRACT 1Numbers of Steller sea lions Eumetopias jubatus in the North Pacific have declined. According to the nutritional stress hypothesis, this decline is due to reduced food availability. Data from studies conducted on pinnipeds in the laboratory are used here to test if the nutritional stress hypothesis can explain the decline of Steller sea lions. 2Overall, there is strong evidence for biologically meaningful differences in the nutritional quality of major prey species. Steller sea lions can partly compensate for low-quality prey by increasing their food consumption. 3There appear to be no detrimental effects of low-lipid prey on sea lion growth or body composition when sea lions can consume sufficient quantities of prey. However, the ability to increase consumption is physiologically limited, particularly in young animals. Overall, it is more difficult to maintain energy intake on a diet of low-quality prey than on a normal diet. 4Under conditions of inadequate food intake (either due to decreased prey availability or quality, or increased energy requirements) the overall impacts of nutritional stress are complex, and are dependent upon season, prey quality, age and the duration and intensity of the nutritional stress event. 5Studies on pinnipeds in the laboratory have been instrumental in identifying the conditions under which changes in sea lion prey can result in nutritional stress and the nature of the physiological impacts of nutritional stress events. [source] Chondrule thermal history from unequilibrated H chondrites: A transmission and analytical electron microscopy studyMETEORITICS & PLANETARY SCIENCE, Issue 10 2002C. Ferraris Nanotextural and nanochemical data indicate similar thermal evolution for chondrules of the same textural groups; minor, yet meaningful differences occur among the different groups. Olivine is the earliest phase formed and crystallizes between 1500 and 1400 °C. Protoenstatite crystallizes at temperatures higher than 1350,1200 °C; it later inverts to clinoenstatite in the 1250,1200 °C range. Enstatite is surrounded by pigeonitic or (less frequently) augitic rims; the minimal crystallization temperature for the rims is 1000 °C; high pigeonite later inverts to low pigeonite, between 935 and 845 °C. The outer pigeonitic or augitic rims are constantly exsolved, producing sigmoidal augite or enstatite precipitates; sigmoidal precipitates record exsolution temperatures between 1000 and 640 °C. Cooling rate (determined using the speedometer based upon ortho-clinoenstatite intergrowth) was in the order of 50,3000 °C/h at the clinoenstatite-orthoenstatite transition temperature (close to 1250,1200 °C), but decreased to 5,10 °C/h or slower at the exsolution temperature (between 1000 and 650 °C), thus revealing nonlinear cooling paths. Nanoscale observations indicate that the individual chondrules formed and cooled separately from 1500 °C down to at least 650 °C. Accretion into chondritic parent body occurred at temperatures lower than 650 °C. [source] Trusting souls: A segmentation of the voting publicPSYCHOLOGY & MARKETING, Issue 12 2002Leon G. Schiffman When a 30-year decline in the American voters' trust of political office holders and the election process is contrasted to their enduring trust of the democratic form of government, there is strong confirmation of the need to take a multidimensional approach in measuring political trust. To this end, a segmentation scheme based on two well-established political trust measures (i.e., incumbent-based trust and regime-based trust) is proposed. In particular how two specific trust segments differ in terms of the time they spend on various political and election-related activities is examined. Among other things, the findings reveal that the dual-trusting segment (i.e., those who were both regime and incumbent trusting) were substantially more likely than the regime-only trusting segment (i.e., those who were regime trusting and incumbent untrusting) to watch television debates or speeches and have informal discussions with friends and co-workers on topics related to the election. There were no meaningful differences between the two segments when it came to giving or raising funds, or campaigning for a candidate or political party. However, when it came to voting-related decision making, the results suggest that dual-trusting individuals were significantly more likely to spend more than a little time considering how they were going to vote for President, U.S. Senate, and on particular political issues. The article ends with suggestions for future research, as well as some thoughts on how politicians and their advisers might more fully embrace the relational marketing paradigm, especially as it pertains to the connection between elected officials and the voting public. © 2002 John Wiley & Sons, Inc. [source] Tracheal intubation in daylight and in the dark: a randomised comparison of the Airway Scope®, Airtraq®, and Macintosh laryngoscope in a manikinANAESTHESIA, Issue 7 2010H. Ueshima Summary Fifteen anaesthetists attempted to intubate the trachea of a manikin lying supine on the ground using the Airway Scope®, Airtraq® or Macintosh laryngoscope in three simulated conditions: (1) in room light; (2) in the dark and (3) in daylight. The main outcome measure was the time to ventilate the lungs after successful intubation; the secondary outcome was the success rate of ventilation within 30 s. In room light and in the dark, ventilation after successful tracheal intubation could always be achieved within 30 s for all three devices. There were no clinically meaningful differences in time to ventilate between the three devices. In daylight, time to ventilate the lungs for the Airway Scope was significantly longer than for the Macintosh blade (p < 0.0001; 95% CI for difference 27.5,65.0 s) and for the Airtraq (p < 0.0001; 95% CI for difference 29.2,67.6 s). Ventilation was always successful for the Macintosh and Airtraq laryngoscopes, but for the Airway Scope, only one of 15 participants could successfully ventilate the lungs (p < 0.0001). Therefore, the Airway Scope may have a role for tracheal intubation under room light or in darkness, but may not be so useful in daylight. In contrast, the Airtraq may have a role in both darkness and daylight. [source] The case for tocolysis in threatened preterm labourBJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 2003Nicholas M. Fisk The failure of tocolytics to improve neonatal outcomes in placebo-controlled trials has wrongly been interpreted as evidence that they do not work. While delivery is unequivocally prolonged by 24 hours, 48 hours and 7 days, the time gained was not exploited to optimise neonatal outcome. These trials typically studied women at relatively advanced gestational ages with predictably good outcomes, enrolled them in tertiary centres where they could not benefit from in-utero transfer, and had low levels of corticosteroid administration. No study has been powered to detect clinically meaningful differences that might be expected to accrue from 1,7 days prolongation of gestation. Despite this, Bayesian interpretation suggests that tocolytics do improve neonatal outcome. The largest placebo-controlled study showed clear trends towards better survival in fetuses <28 weeks, lower rates of cerebral palsy and higher Bayley mental scores. Meta-analysis of neonatal morbidity in the beta-agonist trials suggests a near-significant reduction in respiratory distress syndrome (RDS), together with trends towards reduced intraventricular haemorrhage, necrotising enterocolitis, and patent ductus arteriosus. Finally, there is the Orwellian analogy that tocolytics don't work, but some work better than others. Although calcium antagonists have not been evaluated against placebo, meta-analysis of comparative trials with beta-agonists demonstrate a significantly lower incidence of RDS and neonatal jaundice, presumably mediated through the reduced chance of delivery within 48 hours and 7 days. Development of tocolytics that are safe for mother and baby should facilitate adequately-powered placebo-controlled studies, which both focus on women most likely to benefit and capitalise on the 1,7 days gained. [source] The impact of childhood conditions and concurrent morbidities on child health and well-beingCHILD: CARE, HEALTH AND DEVELOPMENT, Issue 4 2008E. Waters Abstract Background Understanding the impact of illnesses and morbidities experienced by children and adolescents is essential to clinical and population health programme decision making and intervention research. This study sought to: (1) examine the population prevalence of physical and mental health conditions for children and quantify their impact on multiple dimensions of children's health and well-being; and (2) examine the cumulative effect of concurrent conditions. Methods We conducted a cross-sectional school-based epidemiological study of 5414 children and adolescents aged 5,18 years, and examined parental reports of child health and well-being using the parent-report Child Health Questionnaire (CHQ) PF50 13 scales are scored on a 0,100 pt scale with clinically meaningful differences of five points and the presence of childhood conditions (illnesses and health problems). Results Asthma, dental, vision and allergies are the most commonly identified health problems for children and adolescents, followed by attention- and behaviour-related problems (asthma 17.9,23.2%, dental 11.9,22.7%, vision 7.2,14.7%, chronic allergies 8.8,13.9%, attention problems 5.1,13.8% and behaviour problems 5.7,12.0%). As the number of concurrent health problems increase, overall health and well-being decreases substantively with mean differences in CHQ scale scores of 14 points (,7.69 to ,21.51) for physical health conditions, and 28 points (,5.15 to ,33.81) for mental health conditions. Conclusions Children's health and well-being decreases linearly with increasing presence and frequency of health problems. Having three or more conditions concurrently significantly burdens children's health and well-being, particularly for family-related CHQ domains, with a greater burden experienced for mental health conditions than physical health conditions. [source] Beware the Dodo Bird: The Dangers of OvergeneralizationCLINICAL PSYCHOLOGY: SCIENCE AND PRACTICE, Issue 1 2002Dianne L. Chambless Luborsky et al.'s conclusion that there are no meaningful differences in the efficacy of various psychothera-pies should be reconsidered for the following reasons: (a) errors in data analysis, (b) exclusion of research on many types of clients (e.g., children and adolescents), (c) faulty generalization to comparisons between therapies that have never been made, and (d) erroneous assumption that the average difference between all sorts of treatments for all sorts of problems can be assumed to represent the difference between any two types of treatment for a given problem. Concern for clients' welfare demands that psychologists be very wary of accepting the Dodo bird verdict. [source] |