Factor Structure Of Questionnaire Research Articles

Factor structure of the Iranian version of 12-item general health questionnaire.

Background:The 12-Item General Health (GHQ-12) questionnaire is one of the most commonly used instruments in screening studies on mental health.Objectives:The current study aimed to examine the factor structure of the GHQ-12 questionnaire among the students in Iran.Materials and Methods:It was a cross-sectional study in which 428 university students were recruited and completed the GHQ-12. Reliability of the GHQ-12 was evaluated using the Cronbach's alpha and the split-half method by applying the Spearman-Brown coefficient. Factor structure of the questionnaire was extracted by exploratory factor analysis (EFA). Confirmatory factor analysis (CFA) was conducted to assess how well the EFA extracted model fitted the observed data.Results:The mean age of the participants was 22.83 years (SD = 3.09). Most of them were female (56.1%) and 81% were unemployed. The Cronbach’s alpha coefficient for the Iranian version of GHQ-12 was 0.85. Using the split-half method, the alpha for the social dysfunction was found to be 0.77; it was 0.76 for the psychological distress. The principal component analysis revealed a two-factor structure for the questionnaire including social dysfunction and psychological distress that explained 48% of the observed variances. The confirmatory factor analysis was showed fit for the data.Conclusions:The current study findings confirm that the Iranian version of GHQ-12 has a good factor structure and is a reliable and valid instrument to measure psychological distress and social dysfunction.

Validation of French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire among young Swiss males, and its relationship with substance use

This study main purpose was the validation of both French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire. The sample group comprised 5065 Swiss men from the "Cohort Study on Substance Use Risk Factors." Multigroup Confirmatory factor analysis showed that a three-factor model fits the data well, which substantiates the generalizability of Perceived Neighborhood Social Cohesion Questionnaire factor structure, regardless of the language. The Perceived Neighborhood Social Cohesion Questionnaire demonstrated excellent homogeneity (α = 95) and split-half reliability (r = .96). The Perceived Neighborhood Social Cohesion Questionnaire was sensitive to community size and participants' financial situation, confirming that it also measures real social conditions. Finally, weak but frequent correlations between Perceived Neighborhood Social Cohesion Questionnaire and alcohol, cigarette, and cannabis dependence were measured.

Appropriation cognitive du feedback en évaluation du potentiel : validation d’une mesure

IntroductionLimited instruments are available to measure candidate's cognitive integration of the feedback in the context of individual psychological assessment related to the work context. ObjectiveThe objective of this article is to validate a questionnaire measuring two dimensions of feedback integration: feedback acceptance and awareness gained from feedback. MethodTwo studies were conducted with candidates who completed a questionnaire further to their individual psychological assessment feedback session. A first study (n=111) was conducted to explore the factor structure and psychometric properties of the questionnaire. A second study (n=178) was conducted to confirm the questionnaire factor structure and to substantiate the nomological and discriminant validity of its two dimensions. ResultsResults confirm that the questionnaire measures the two hypothesized dimensions which are only moderately correlated. Nomological and discriminant validity were established by showing that the two dimensions are correlated with meaningful antecedents and outcomes following a distinctive expected pattern for acceptance (more related to assessor’ perceived expertise) and awareness (more related to perceived message relevance and intent to act upon feedback). DiscussionGiving preliminary evidences of reliability and validity, this questionnaire can be used by practitioners and researchers to study candidates’ cognitive integration of feedback.

A Test and Cross-Validation of the Revised Two-Factor Study Process Questionnaire Factor Structure Among Western University Students

The Revised Two-Factor Study Process Questionnaire (R-SPQ-2F) is a measure of university students’ approach to learning. Original evaluation of the scale’s psychometric properties was based on a sample of Hong Kong university students’ scores. The purpose of this study was to test and cross-validate the R-SPQ-2F factor structure, based on separate cohort data (Cohort 1: n = 1,490; Cohort 2: n = 1,533), among students attending a university in the United States. Factor analytic results did not support the scale’s original factor structure, instead suggesting an alternative four-factor model of the scale data. In the cross-validation study, multisample confirmatory factor analysis results indicated that the scale’s measurement model parameters (e.g., factor loadings) were invariant across independent samples. Despite support for the scale’s respecified factor structure for Western university students, continued research is recommended to improve the scale’s psychometric properties. Implications for test score use and interpretation are discussed.

Validation of a maternal questionnaire on correlates of physical activity in preschool children

BackgroundValid measures of physical activity correlates in preschool children are lacking. This study aimed to assess the validity, factor structure and internal consistency of a maternal questionnaire on potential correlates of four-year-old children's physical activity.MethodsThe questionnaire was designed to measure the following constructs: child personal factors; parental support and self-efficacy for providing support; parental rules and restrictions; maternal attitudes and perceptions; maternal behaviour; barriers to physical activity; and the home and local environments. Two separate studies were conducted. Study I included 24 mothers of four-year-old children who completed the questionnaire then participated in a telephone interview covering similar items to the questionnaire. To assess validity, the agreement between interview and questionnaire responses was assessed using Cohen's kappa and percentage agreement. Study II involved 398 mothers of four-year-old children participating in the Southampton Women's Survey. In this study, principal components analysis was used to explore the factor structure of the questionnaire to aid future analyses with these data. The internal consistency of the factors identified was assessed using Cronbach's alpha.ResultsKappa scores showed 30% of items to have moderate agreement or above, 23% to have fair agreement and 47% to have slight or poor agreement. However, 89% of items had fair agreement as assessed by percentage agreement (≥ 66%). Limited variation in responses to variables is likely to have contributed to some of the low kappa values. Six questions had a low kappa and low percentage agreement (defined as poor validity); these included questions from the child personal factors, maternal self-efficacy, rules and restrictions, and local environment domains. The principal components analysis identified eleven factors and found several variables to stand alone. Eight of the composite factors identified had acceptable internal consistency (α ≥ 0.60) and three fell just short of achieving this (0.60 > α > 0.50).ConclusionOverall, this maternal questionnaire had reasonable validity and internal consistency for assessing potential correlates of physical activity in young children. With minor revision, this could be a useful tool for future research in this area. This, in turn, will aid the development of interventions to promote physical activity in this age group.

The EAS Temperament Questionnaire—Factor Structure, Age Trends, Reliability, and Stability in a Norwegian Sample

A population-based sample of Norwegian children aged 18 months (N = 921), 30 months (N = 784), and 50 months (N = 737) was examined with the EAS Temperament Survey (Buss & Plomin, 1984). The factor structure, psychometric properties, and stability estimates of the instrument were assessed. A cross-validation of the temperament factors of Emotionality, Activity, and Shyness show that the covariance structure conforms with the three scales described by Rowe and Plomin (1977) and Boer and Westenberg (1994). When items from the experimental scale of Sociability were included in the analysis, a four-factor solution confirmed the separate usability of this scale as well. The factor structure does not seem to vary substantially with the age of the children. The scores on the four temperament scales show high stability from one time of measurement to the next. Although no strong gender differences were found, there were significant age trends. Emotionality and Shyness increased from 18 to 50 months, while Activity and Sociability decreased. The study confirmed the structure and stability of the EAS over 3 years among young children, providing support for its use with children as young as 18 months.

The EAS Temperament Questionnaire—Factor Structure, Age Trends, Reliability, and Stability in a Norwegian Sample

The EAS Temperament Questionnaire—Factor Structure, Age Trends, Reliability, and Stability in a Norwegian Sample

Personality structure of elderly drivers.

This paper reports the factor structure of a 37-item personality questionnaire intended to be predictive of driving performance in elderly persons. Subjects were 191 persons 63 years of age of older, about half of whom also were given perceptual/cognitive tasks and drove on a closed driving course. Although the personality questionnaire did not predict driving skill, the factor structure of the questionnaire is of interest. Of several factor analyses, the most satisfactory was a 2-factor solution. We interpreted the approximately orthogonal factors as measuring what we labeled Competence and Emotionality.

Does the Illness Behavior Questionnaire measure abnormal illness behavior?

Abnormal illness behavior (AIB) has been proposed as a construct measuring the inappropriate or maladaptive modes of responding to one's state of health, and the Illness Behavior Questionnaire (BQ; Pilowsky, 1975) was designed to measure this construct. Previous studies using small samples have failed to agree on the factor structure of this questionnaire. The present paper examines the factor structure of the Illness Behavior Questionnaire and critically evaluates the interpretation of its dimensions as well as the construct of AIB. A factor analysis of responses from 1,061 health care and nonhealth care seeking subjects yielded six interpretable factors which substantially replicated Pilowsky's previous results. Six scales were calculated and correlated with several personality measures. The results indicated that the Illness Behavior Questionnaire is saturated with neuroticism, a dimension known to be related to excessive medical complaints. But excessive medical complaints cannot be equated with hypochondriasis or AIB in the absence of objective medical information. In the absence of evidence for the discriminant validity of the IBQ, its use as a diagnostic device is unwarranted. Treating elevated IBQ scores as indicators of abnormal illness behavior without corroborating medical information may be more misleading than accepting patients' symptom reports at face value.