Psychometrics properties of the Swansea Muscularity Attitudes Questionnaire (SMAQ)

The psychometric soundness of the Swansea Muscularity Attitudes Questionnaire (SMAQ) was examined using two independent samples of Canadian male post-secondary students (Ns = 250 and 310, respectively). Exploratory and confirmatory factor analyses suggested that the final 19-item version of the SMAQ is represented by three latent constructs, which we have labeled: intention to become more muscular (eight-items), positive attributes of muscularity (nine-items), and engagement in muscle-building activities (two-items). Alpha coefficients for the intention and positive subscales were very good (i.e., range = .86–.92). Correlation coefficients between the two-items comprising the engagement subscale also suggest that they can be combined into a composite measure (rs = .70 [study 1] and .58 [study 2]). Various tests of criterion-related and construct validity were conducted, with results indicating that the SMAQ subscales are valid indicants of the drive for muscularity.     

The Situational Specificity of Validities: Correcting for Statistical Artifacts Does Not Always Reduce the Trans-Situational Variability of Correlation Coefficients

Validity generalization research suggests that much of the variability in validity coefficients is due to statistical artifacts, such as sampling error. Correcting for these artifacts usually reduces the trans-situational variability in validity coefficients, but the reverse can happen. Conditions under which corrections for statistical artifacts can increase the variability in validity coefficients are described, examples of meta-analyses reporting larger corrected than observed variance in validity are cited, and implications for the situational specificity of validity coefficients are discussed. In general, the true variability in validity coefficients based on large samples is often larger than the observed variability in test validities.     

Short measurements of personality - Validity and reliability of the GSOEP Big Five Inventory (BFI-S)

In the last decade, an upward trend in the use of short measurements for personality can be observed. The goal of this study was to explore the psychometric characteristics of the GSOEP Big Five Inventory (BFI-S; Gerlitz & Schupp, 2005), a 15-item instrument. We compared the BFI-S with the NEO-PI-R ( [Costa and McCrae, 1992a] and [Costa and McCrae, 1992b]) in a sample of 598 German adults (mean age = 42 years). Despite shortcomings for Agreeableness, the short scales generally showed acceptable levels of: (1) internal consistency, (2) stability over a period of 18 months, (3) convergent validity in relation to the NEO-PI-R and (4) discriminant validity. We conclude that in research settings with a pronounced need for parsimony, the BFI-S offers a sufficient level of utility.     

Measurement invariance of WISC-IV across normative and clinical samples

Measurement invariance of the WISC-IV second-order factorial structure between normative and clinical samples was investigated using WISC-IV core subtests and a total of 1100 children aged 6-16. Multi-group higher order analysis of mean and covariance structure (MG-MACS) models were used to analyze these data. Results supported measurement invariance. Only Coding and Comprehension subtest intercepts varied slightly between groups. The hypothesized WISC-IV factor model described the data well. Factor patterns, first- and second-order factor loadings, intercepts, residual variances of measured subtests, and disturbances of first-order factors of the WISC-IV were generally invariant. Results suggested that WISC-IV index scores and subtests have the same meaning for children in both normative and clinical groups.     

Evidencia de validez factorial del Maslach Burnout Inventory y estudio de los niveles de burnout en profesionales sanitarios

In this research we studied the levels and the associated variables with the burnout syndrome in health professionals. This research aimed to obtain evidences of factorial validity of the Maslach Burnout Inventory (MBI), to estimate the prevalence of burnout, and to identify the risk factors for this syndrome among health professionals. A cross-sectional, quantitative, and exploratory study was conducted for this purpose. The sample consisted of 435 professionals including assistants, nurses and doctors. The results indicated proper adjustment in the tri-factorial structure of the MBI. It was also found that professional category, age and type of dedication, are risk factors for suffering from burnout. On the other hand, the results showed that nurses had higher burnout levels than the rest of the professional groups studied. The foregoing suggests that the above risk factors should be taken into account when implementing programs to prevent development of the syndrome.     

The structure and validity of directional measures of appearance social comparison among emerging adults in China

We evaluated the structure and validity of the Upward Appearance Comparison Scale (UPACS) and Downward Appearance Comparison Scale (DACS) (O’Brien et al., 2009) in Chinese samples. In Study 1, principal component analysis on an initial sample (427 women, 123 men) and confirmatory factor analysis on another sample (447 women, 121 men) found that a 15-item, two component model had the best overall fit. Derived components had moderate correlations with most conceptually related measures and low correlations with less conceptually related indices. Study 2 participants (310 women, 201 men) completed the UPACS and DACS as well as measures of disordered eating, fatness concern, and negative affect; they were re-assessed one year later. Baseline UPACS scores predicted changes in disordered eating for women and fatness concerns for men, independent of initial disturbances, but DACS responses were not related to outcomes. Findings highlighted the potential utility of derived UPACS and DACS within a Chinese context.     

The factor structure and psychometric properties of the Italian version of the Acceptance of Cosmetic Surgery Scale

The current study examined the validity of the Italian version of the Acceptance of Cosmetic Surgery Scale (ACSS; Henderson-King & Henderson-King, 2005) in a sample of 378 Italian adult women. A series of confirmatory factor analyses were conducted. A three-factor solution provided the best fit to the data and confirmed the Intrapersonal, Social, and Consider dimensions. The three factors were strongly inter-correlated. Cronbach's alphas were high (all alphas > .86). The scale showed good convergent and discriminant validity (estimated by Composite Reliability and the Average Variance Extracted). The nomological validity of the Italian version of the ACSS was confirmed by its significant correlations with participants’ body dissatisfaction and sociocultural influences (internalization of thin ideals and perceived media pressure). The ACSS seems to be a useful measure of acceptance of cosmetic surgery in the Italian context. This instrument can be used with Italian speakers for research, health promotion, and preventive interventions.     

A checklist for testing measurement invariance

The analysis of measurement invariance of latent constructs is important in research across groups, or across time. By establishing whether factor loadings, intercepts and residual variances are equivalent in a factor model that measures a latent concept, we can assure that comparisons that are made on the latent variable are valid across groups or time. Establishing measurement invariance involves running a set of increasingly constrained structural equation models, and testing whether differences between these models are significant. This paper provides a step-by-step guide to analysing measurement invariance.     

Measuring self-serving cognitive distortions: A meta-analysis of the psychometric properties of the How I Think Questionnaire (HIT)

The How I Think Questionnaire (HIT; Barriga et al., 2001) is a self-report measure of self-serving cognitive distortions. This study used meta-analytic methods to analyse: (i) the reliability of the HIT scores across samples; (ii) the variability in reliability estimates; and (iii) the convergent and criterion-group validity of the HIT scores. Results showed an excellent reliability of the total HIT scores: mean alpha = .93, 95% CI [.92, .94]; k = 29, N = 8,186. Heterogeneity of total HIT was mainly explained by type of population. The reliabilities of the four subscale scores were also adequate. Moreover, the HIT has strong convergent validity and is able to discriminate between offenders and control participants. Limitations of the current literature are discussed.     

Validating the Beck Depression Inventory-II in Indonesia's general population and coronary heart disease patients

This study assesses the validity and determines the cut-off point for the Beck Depression Inventory-II (the BDI-II) among Indonesians. The Indonesian version of the BDI-II (the Indo BDI-II) was administered to 720 healthy individuals from the general population, 215 Coronary Heart Disease (CHD) patients, and 102 depressed patients. Confirmatory factor analysis indicated factorial similarity across the three samples. Significant correlations between the Indo BDI-II and other self-report measures related to depression demonstrated construct validity of the Indo BDI-II. Furthermore, there was a highly significant difference in the Indo BDI-II scores between depressed patients and non-depressed participants. Internal consistency and re-test reliability of the Indo BDI-II were acceptable. The receiver operating characteristic (ROC) curve indicated that the cut-off point of the Indo BDI-II for a mild severity of depression in Indonesian population should be 17. We conclude that the Indo BDI-II is a valid measure of depression, both in the Indonesian general population and in CHD patients.