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Fit Index (fit + index)

Distribution by Scientific Domains

Medical Sciences	69%
Psychology	15%

Kinds of Fit Index

comparative fit index

Selected Abstracts

Correlates of peer victimization and achievement: An exploratory model

PSYCHOLOGY IN THE SCHOOLS, Issue 4 2009
Tanya Beran
This study investigates peer victimization and achievement. Adolescents aged 12,15 years were drawn from the National Longitudinal Survey of Children and Youth, which is a stratified random sample of 22,831 households in Canada. Teachers', children's, and parents' reports were combined in a latent variable path analysis, ,2(51) = 348.54, p < .000. The model converged in six iterations resulting in a Comparative Fit Index = .90, and a standardized residual mean error of .05. The model shows that adolescents who are victimized by their peers are at risk of experiencing poor school achievement if they exhibit disruptive behaviors, receive little support from their teachers, and experience non-nurturing, rejecting behaviors from their parents. © 2009 Wiley Periodicals, Inc. [source]

Development and psychometric testing of a new geriatric spiritual well-being scale

INTERNATIONAL JOURNAL OF OLDER PEOPLE NURSING, Issue 3 2008
Karen S. Dunn PhD
Aims and objectives., Assess the psychometric properties of a new geriatric spiritual well-being scale (GSWS), specifically designed for older adults. Background., Religiosity and spiritual wellness must be measured as two distinct concepts to prevent confounding them as synonymous among atheist and agnostic population. Design., A test,retest survey design was used to estimate the psychometric properties. Methods., A convenience sample of 138 community-dwelling older adults was drawn from the inner city of Detroit. Data were collected using telephone survey interviews. Data analyses included descriptive statistics, structural equation modelling, reliability analyses, and point-biserial correlations. Results., The factorial validity of the proposed model was not supported by the data. Fit indices were ,2 = 185.98, d.f. = 98, P < 0.00, goodness-of-fit index of 0.85, comparative fit index of 0.87 and root mean error of approximation of 0.08, indicating a mediocre fit. Reliability statistics for the subscales ranged from being poor (0.36) to good (0.84) with an acceptable overall scale alpha of 0.76. Participants' performance stability and criterion-related validity were also supported. Conclusions., The GSWS is an age-specific assessment tool that was developed specifically to address a population's cultural diversity. Future research endeavors will be to test the psychometric properties of this scale in culturally diverse older adult populations for further instrument development. Relevance to clinical practice., Nurses need to recognize that agnostics/atheists have spiritual needs that do not include religious beliefs or practices. Thus, assessing patients' religious beliefs and practices prior to assessing spiritual well-being is essential to prevent bias. [source]

Factorial structure and cross-cultural invariance of the Oral Impacts on Daily Performances

EUROPEAN JOURNAL OF ORAL SCIENCES, Issue 3 2009
A. N. Åstrøm
The issue of cross-cultural construct validation and measurement invariance of the Oral Impacts on Daily Performances (OIDP) questionnaire is important. Using confirmatory factor analysis (CFA), this study evaluated a proposed three-factor structure of the OIDP questionnaire in Tanzanian adolescents and adults and assessed whether this model would be replicated in Ugandan adolescents. Between 2004 and 2007, OIDP data were collected from 1,601 Tanzanian adolescents, 1,031 Tanzanian adults, and 1,146 Ugandan adolescents. Model generation analysis was restricted to Tanzanian adolescents, and the model achieved was tested, without modification, in Tanzanian adults and in Ugandan adolescents. A modified three-factor solution with cross-loadings improved the fit of the OIDP model to the data compared with a one-factor model and the original three-factor model within the Tanzanian [comparative fit index (CFI) = 0.99] and Ugandan (CFI = 0.98) samples. Cross-validation in Tanzanian adults provided a reasonable fit (CFI = 0.98). Multiple-group CFA demonstrated acceptable fit [,2 = 140.829, degrees of freedom (d.f.) = 24, CFI = 0.98] for the unconstrained model, whereas unconstrained and constrained models were statistically significantly different. Factorial validity was confirmed for the three-factor OIDP model. The results provide evidence for cross-cultural equivalence of the OIDP, suggesting that this measure is comparable, at least to some extent, across Tanzanian and Ugandan adolescents. [source]

Combined effect of factors associated with burdens on primary caregiver

GERIATRICS & GERONTOLOGY INTERNATIONAL, Issue 2 2009
Hyuma Makizako
Background: It is argued that a multidimensional approach is necessary for burden assessment. Reducing caregiver burden is a social problem in the ageing Japan society. We examined the combined effect of factors affecting the care burden among community-dwelling handicapped people and their caregivers. Methods: The participants were 49 handicapped people (aged 53,104 years) who received home-visit rehabilitation, and their 49 caregivers (age 42,85 years). Caregivers were provided questionnaires consisting of questions on social support, subjective well-being, self-efficacy with regard to care continuation, the Motor Fitness Scale and caregiver burden. Care recipients were assessed using the Bedside Mobility Scale and the Barthel Index. Results: We prepared the hypothesis model using structural equation modeling with the bootstrap method within outcome measures. The hypothesis model did not fit the data well. The impact of the Motor Fitness Scale was shifted from the caregiver burden to care self-efficacy and well-being, having a cooperator for care and variable of spouse caregiver or others associated with caregiver well-being in the revised model. The fit of the revised model was acceptable (goodness of fit index, 0.903; comparative fit index, 0.998; root mean square error of approximation, 0.017). In the revised model, the care recipients' disabled state was associated with caregiver burden. In addition, higher burden and poor motor fitness of caregivers might lead to lower care self-efficacy in providing continuous care and lower caregiver well-being. Conclusion: These findings suggested that the program to reduce caregiver burden should focus on aspects of the care recipients' disabled state, the caregivers' well-being, fitness, and care self-efficacy. [source]

Development and psychometric testing of a new geriatric spiritual well-being scale

Trust in Nurses Scale: construct validity and internal reliability evaluation

JOURNAL OF ADVANCED NURSING, Issue 3 2010
Laurel E. Radwin
radwin l.e. & cabral h.j. (2010) Trust in Nurses Scale: construct validity and internal reliability evaluation. Journal of Advanced Nursing66(3), 683,689. Abstract Aim., This paper is a report of the continued psychometric evaluation of the Trust in Nurses Scale. Background., Qualitative analyses indicate that trust in nurses is critically important to adult patients. Instruments that distinctively measure this concept are lacking. A middle-range theory of patient-centred nursing care provided the theoretical basis for the Trust in Nurses Scale. Content validity was assessed by an expert panel and patient interviews. Construct validity and reliability were found acceptable using multi-trait/multi-item analysis techniques. These findings were previously reported. Methods., Construct validity and reliability of the Trust in Nurses Scale was assessed in 2007 using data collected during 2004,2005 from 187 hospitalized patients in a haematology-oncology setting. Trust in nurses (the latent factor) was operationalized by five items (manifest variables) using confirmatory factor analyses. Fit statistics included comparative fit index, Tucker-Lewis Index, root mean square error of approximation and the standardized root mean square residual. Internal consistency reliability was assessed using coefficient alpha. Findings., Both a five-item and a four-item version demonstrate acceptable psychometric properties. The five-item version met three fit statistics criteria. Fifty-nine per cent of the variance was explained. A four-item version met all fit statistics criteria. Sixty-six per cent of the variance was explained. Acceptable internal consistency reliability was found for both versions. Conclusion., Previous psychometric testing of the Trust in Nurses Scale provided evidence of the instrument's reliability, content validity and construct validity. The presented analyses further support construct validity. Thus, cumulative findings indicate that the instrument measures with a few items the underlying concept of trust. [source]

Factor structure of a conceptual model of oral health tested among 65-year olds in Norway and Sweden

COMMUNITY DENTISTRY AND ORAL EPIDEMIOLOGY, Issue 2 2010
Anne Nordrehaug Åstrøm
Åstrøm AN, Ekbäck G, Ordell S. Factor structure of a conceptual model of oral health tested among 65-year olds in Norway and Sweden. Community Dent Oral Epidemiol 2010. © 2010 John Wiley & Sons A/S Abstract,,, Background:, No studies have tested oral health-related quality of life models in dentate older adults across different populations. Objectives:, To test the factor structure of oral health outcomes within Gilbert's conceptual model among 65-year olds in Sweden and Norway. It was hypothesized that responses to 14 observed indicators could be explained by three correlated factors, symptom status, functional limitations and oral disadvantages, that each observed oral health indicator would associate more strongly with the factor it is supposed to measure than with competing factors and that the proposed 3-factor structure would possess satisfactory cross-national stability with 65-year olds in Norway and Sweden. Methods:, In 2007, 6078 Swedish- and 4062 Norwegian adults borne in 1942 completed mailed questionnaires including oral symptoms, functional limitations and the eight item Oral Impacts on Daily Performances inventory. Results:, Model generation analysis was restricted to the Norwegian study group and the model achieved was tested without modifications in Swedish 65-year olds. A modified 3-factor solution with cross-loadings, improved the fit to the data compared with a 2-factor- and the initially proposed 3-factor model among the Norwegian [comparative fit index (CFI) = 0.97] and Swedish (CFI = 0.98) participants. All factor loadings for the modified 3-factor model were in the expected direction and were statistically significant at CR > 1. Multiple group confirmatory factor analyses, with Norwegian and Swedish data simultaneously revealed acceptable fit for the unconstrained model (CFI = 0.97), whereas unconstrained and constrained models were statistically significant different in nested model comparison. Conclusions:, Within construct validity of Gilbert's model was supported with Norwegian and Swedish 65-year olds, indicating that the 14-item questionnaire reflected three constructs; symptom status, functional limitation and oral disadvantage. Measurement invariance was confirmed at the level of factor structure, suggesting that the 3-factor model is comparable to some extent across 65-year olds in Norway and Sweden. [source]

The Attentional Resource Allocation Scale (ARAS): psychometric properties of a composite measure for dissociation and absorption,

DEPRESSION AND ANXIETY, Issue 8 2010
R. N. Carleton M.A.
Abstract Background: Differences in attentional processes have been linked to the development and maintenance of psychopathology. Shifts in such processes have been described by the constructs Dissociation and Absorption. Dissociation occurs when external and/or internal stimuli are excluded from consciousness due to discrepant, rather than unitary, manifestations of cognitive awareness [Erdelyi MH. 1994: Int J Clin Exp Hypnosis 42:379,390]. In contrast, absorption can be conceptualized by a focus on limited stimuli, to the exclusion of other stimuli, because of unifying, rather than discrepant, manifestations of cognitive awareness. The Dissociative Experiences Scale [DES; Bernstein EM, Putnam FW. 1986: J Nerv Ment Dis 174:727,735] and Tellegen Absorption Scale [TAS; Tellegen A, Atkinson G. 1974: J Abnorm Psychol 83:268,277] are common measures of each construct; however, no factor analyses are available for the TAS and despite accepted overlap, no one has assessed the DES and TAS items simultaneously. Previous research suggests the constructs and factor structures need clarification, possibly including more parsimonious item inclusion [Lyons LC, Crawford HJ. 1997: Person Individ Diff 23:1071,1084]. The purpose of this study was to evaluate the factor structure of the DES and TAS and create a psychometrically stable measure of Dissociation and Absorption. Methods: This study included data from an undergraduate (n=841; 76% women) and a community sample (n=233; 86% women) who each completed the DES and TAS. Results: Exploratory factor analyses [Osborne JW (ed). 2008: Best Practices in Quantitative Methods. Los Angeles: Sage Publications Inc.] with all DES and TAS items suggested a 15-item 3-factor solution (i.e., imaginative involvement, dissociative amnesia, attentional dissociation). Confirmatory factor analyses resulted in excellent fit indices for the same solution. Conclusions: The items and factors were conceptualized in line with precedent research as the Attentional Resource Allocation Scale (ARAS). Comprehensive results, implications, and future research directions are discussed. Depression and Anxiety, 2010. © 2010 Wiley-Liss, Inc. [source]

Revisiting the Sense of Community Index: A confirmatory factor analysis

JOURNAL OF COMMUNITY PSYCHOLOGY, Issue 6 2004
Patricia L. Obst
The Sense of Community Index (SCI) is one of the most commonly used measures of Psychological Sense of Community (PSOC). There is much discussion in the literature as to the validity of the scale as a measure not only of overall PSOC, but also of the dimensions (Membership, Influence, Needs Fulfillment, and Emotional Connection) theorized by McMillan and Chavis (1986) to underlie the construct. The current paper examines the factor structure of SCI in a study ( N = 219) that examines multiple community memberships, including neighborhood, student, and interest group communities. Data was analyzed by confirmatory factor analysis (CFA). The results showed that the SCI, in its original factor structure, did not adequately fit the data. The scale was revised, therefore, using CFA indicators, to produce a new four-factor structure based on the same items. This revised model was tested and found to display adequate fit indices to the data in all three communities. The results of the study provide empirical support for retaining measures that encapsulate the four dimensions of PSOC. © 2004 Wiley Periodicals, Inc. J Comm Psychol 32: 691,705, 2004. [source]

A Comparison of Item Fit Statistics for Mixed IRT Models

JOURNAL OF EDUCATIONAL MEASUREMENT, Issue 3 2010
Kyong Hee Chon
In this study we examined procedures for assessing model-data fit of item response theory (IRT) models for mixed format data. The model fit indices used in this study include PARSCALE's,G2,,Orlando and Thissen's,S,,,X2,and,S,,,G2,,and Stone's,,2*,and,G2*. To investigate the relative performance of the fit statistics at the item level, we conducted two simulation studies: Type I error and power studies. We evaluated the performance of the item fit indices for various conditions of test length, sample size, and IRT models. Among the competing measures, the summed score-based indices,S,,,X2,and,S,,,G2,were found to be the sensible and efficient choice for assessing model fit for mixed format data. These indices performed well, particularly with short tests. The pseudo-observed score indices, ,2*,and,G2*,,showed inflated Type I error rates in some simulation conditions. Consistent with the findings of current literature, the PARSCALE's,G2,index was rarely useful, although it provided reasonable results for long tests. [source]

Psychometric properties of the Swedish PedsQL, Pediatric Quality of Life Inventory 4.0 generic core scales

ACTA PAEDIATRICA, Issue 9 2009
Solveig Petersen
Abstract Aim:, To study the psychometric performance of the Swedish version of the Pediatric Quality of Life Inventory (PedsQL) 4.0 generic core scales in a general child population in Sweden. Methods:, PedsQL forms were distributed to 2403 schoolchildren and 888 parents in two different school settings. Reliability and validity was studied for self-reports and proxy reports, full forms and short forms. Confirmatory factor analysis tested the factor structure and multigroup confirmatory factor analysis tested measurement invariance between boys and girls. Results:, Test-retest reliability was demonstrated for all scales and internal consistency reliability was shown with , value exceeding 0.70 for all scales but one (self-report short form: social functioning). Child-parent agreement was low to moderate. The four-factor structure of the PedsQL and factorial invariance across sex subgroups were confirmed for the self-report forms and for the proxy short form, while model fit indices suggested improvement of several proxy full-form scales. Conclusion:, The Swedish PedsQL 4.0 generic core scales are a reliable and valid tool for health-related quality of life (HRQoL) assessment in Swedish child populations. The proxy full form, however, should be used with caution. The study also support continued use of the PedsQL as a four-factor model, capable of revealing meaningful HRQoL differences between boys and girls. [source]

The conceptual relationship between health indicators and quality of life: results from the cross-cultural analysis of the EUROHIS field study

CLINICAL PSYCHOLOGY AND PSYCHOTHERAPY (AN INTERNATIONAL JOURNAL OF THEORY & PRACTICE), Issue 1 2005
Silke Schmidt
The aim of this study was to determine the performance of various health indicators to predict quality of life, mental health and general health from a conceptual point of view. The EUROHIS study (see Nosikov and Gudex, 2003) includes a broad range of health care and health behaviour related indicators, such as preventive care, health care utilization, use of medicine, physical health, mental health, alcohol consumption, physical activity and quality of life. Data on various health indicators and quality of life were collected from 10 countries, amounting to a sample size of 4849 (2750 females and 2099 males). An analytical approach was employed to investigate the interrelationship between indicators of each particular indicator set (such as alcohol consumption) and between conceptually different indicator sets. Regression analyses as well as structural equation modelling were employed, pooled across all countries as well as separately for different groups of countries. Findings indicate a higher extent of cross-cultural variation in health behaviour and the QOL measures than in mental health and physical health. In regression analyses, results showed strong and consistent effects of various health behaviour indicators to predict quality of life (R2 = 0.48), mental health (R2 = 0.48) or general health (R2 = 0.45). However, a differential effect of socio-demographic variables, in particular education, and health behavioural determinants was found in different groups of countries. In the structural equation modelling, good fit indices were observed for the model determining physical and mental health factors by different health behaviour factors. Findings suggest that quality of life rather mediates mental outcomes in this particular set of health indicators in a European sample than functions as an outcome variable. However, it was not possible to include sociodemographic data in the whole model but only in each of the latent factors. This finding still requires replication, both in different clinical groups and in longitudinal data.,Copyright © 2005 John Wiley & Sons, Ltd. [source]