An alternative to post hoc model modification in confirmatory factor analysis: The Bayesian lasso.

Abstract Background Teachers with a teacher-centred perspective have difficulties applying student-centred approaches in Problem Based Learning (PBL) because they are inclined to show teacher-centred behaviours. The six aspects explained in Korthagen’s Onion Model (environment, behaviour, competencies, beliefs, identity, and mission) are assumed to contribute to teachers’ perspectives, showing that both the environment and personal characteristics influence behaviours. For teachers to function properly in PBL, those six aspects should reflect a student-centred perspective. Previous instruments to measure teaching perspectives focused on only a few of these relevant aspects. Therefore, we developed the Student-Centred Perspective of Teachers (SCPT) questionnaire with subscales for each aspect in the Onion Model. This study aimed to provide evidence for its internal and external validity. Methods The SCPT was distributed in a survey to 795 teachers from 20 medical schools. For the internal validation, Confirmatory Factor Analysis was performed to analyse theoretical fit model validation, convergent validation, and discriminant validation. For the external validation, teachers’ perspective scores were compared among three groups of amount of PBL training using Analysis of Variance (ANOVA) and post-hoc Least Significant Difference (LSD) tests. The p-value for all tests was set at .05. Results A total of 543 out of 795 teachers (68.3%) participated. Confirmatory Factor Analysis showed the evidence of the SCPT’s internal validation with acceptable fit for the six subscales measured by 19 items and the following Composite Reliability scores: environment (.72), behaviour (.74), competencies (.63), beliefs (.55), identity (.76), and mission (.60). All items’ factors loadings reached a good standard (.5 or greater). Only the environment subscale had the Average Variance Extracted (AVE) score higher than .5 and the Maximum Shared Variance score lower than the AVE score. ANOVA and Post-hoc LSD tests showed that teachers who participated in more PBL training showed significantly higher student-centred perspectives, providing evidence for external validity. Conclusion The SCPT is a reliable and valid instrument to measure teaching perspectives. Identifying aspects that do not represent the adoption of a student-centred perspective may provide valuable input for faculty development in the context of PBL.

Download Full-text

Evidence-based subtypes in functional dyspepsia with confirmatory factor analysis: Psychosocial and physiopathological correlates

Gastroenterology ◽

10.1016/s0016-5085(01)80255-9 ◽

2001 ◽

Vol 120 (5) ◽

pp. A51-A52 ◽

Cited By ~ 3

Author(s):

B FISCHLER ◽

J VANDENBERGHE ◽

P PERSOONS ◽

V GUCHT ◽

D BROEKAERT ◽

...

Keyword(s):

Factor Analysis ◽

Confirmatory Factor Analysis ◽

Functional Dyspepsia ◽

Evidence Based ◽

Confirmatory Factor

Download Full-text

The French Version of the Revised Child Anxiety and Depression Scale (RCADS) in a Nonclinical Sample

Swiss Journal of Psychology ◽

10.1024/1421-0185/a000158 ◽

2015 ◽

Vol 74 (3) ◽

pp. 119-127 ◽

Cited By ~ 10

Author(s):

Martine Bouvard ◽

Anne Denis ◽

Jean-Luc Roulin

Keyword(s):

Factor Analysis ◽

Anxiety Disorder ◽

Confirmatory Factor Analysis ◽

Generalized Anxiety Disorder ◽

Child Anxiety ◽

Depression Scale ◽

Anxiety And Depression ◽

Generalized Anxiety ◽

French Version ◽

Confirmatory Factor

This article investigates the psychometric properties of the Revised Child Anxiety and Depression Scale (RCADS). A group of 704 adolescents completed the questionnaires in their classrooms. This study examines potential confirmatory factor analysis factor models of the RCADS as well as the relationships between the RCADS and the Screen for Child Anxiety Related Emotional Disorders-Revised (SCARED-R). A subsample of 595 adolescents also completed an anxiety questionnaire (Fear Survey Schedule for Children-Revised, FSSC-R) and a depression questionnaire (Center for Epidemiological Studies Depression Scale, CES-D). Confirmatory factor analysis of the RCADS suggests that the 6-factor model reasonably fits the data. All subscales were positively intercorrelated, with rs varying between .48 (generalized anxiety disorder-major depression disorder) and .65 (generalized anxiety disorder-social phobia/obsessive-compulsive disorder). The RCADS total score and all the RCADS scales were found to have good internal consistency (> .70). The correlations between the RCADS subscales and their SCARED-R counterparts are generally substantial. Convergent validity was found with the FSSC-R and the CES-D. The study included normal adolescents aged 10 to 19. Therefore, the findings cannot be extended to children under 10, nor to a clinical population. Altogether, the French version of the RCADS showed reasonable psychometric properties.

Download Full-text

The Hierarchical Model of Exercise Dependence

Journal of Individual Differences ◽

10.1027/1614-0001/a000172 ◽

2015 ◽

Vol 36 (4) ◽

pp. 247-257 ◽

Cited By ~ 1

Author(s):

Gayatri Kotbagi ◽

Laurence Kern ◽

Lucia Romo ◽

Ramesh Pathare

Keyword(s):

Factor Analysis ◽

Confirmatory Factor Analysis ◽

Physical Exercise ◽

Exploratory Factor Analysis ◽

Convergent Validity ◽

Large Population ◽

Assessment Tools ◽

Negative Consequences ◽

Confirmatory Factor ◽

Preliminary Version

Abstract. Physical exercise when done excessively may have negative consequences on physical and psychological wellbeing. There exist many scales to measure this phenomenon. The purpose of this article is to create a scale measuring the problematic practice of physical exercise (PPPE Scale) by combining two assessment tools already existing in the field of exercise dependency but anchored in different approaches (EDS-R and EDQ). This research consists of three studies carried out on three independent sample populations. The first study (N = 341) tested the construct validity (exploratory factor analysis); the second study (N = 195) tested the structural validity (confirmatory factor analysis) and the third study (N = 104) tested the convergent validity (correlations) of the preliminary version of the PPPE scale. Exploratory factor analysis identified six distinct dimensions associated with exercise dependency. Furthermore, confirmatory factor analysis validated a second order model consisting of 25 items with six dimensions and four sub-dimensions. The convergent validity of this scale with other constructs (GLTEQ, EAT26, and The Big Five Inventory [BFI]) is satisfactory. The preliminary version of the PPPE must be administered to a large population to refine its psychometric properties and develop scoring norms.

Download Full-text

Confirmatory Factor Analysis of the Long and Short Forms of the Worry Domains Questionnaire

European Journal of Psychological Assessment ◽

10.1027/1015-5759.25.4.239 ◽

2009 ◽

Vol 25 (4) ◽

pp. 239-243

Author(s):

Roberto Nuevo ◽

Andrés Losada ◽

María Márquez-González ◽

Cecilia Peñacoba

Keyword(s):

Factor Analysis ◽

Confirmatory Factor Analysis ◽

Factor Structure ◽

Goodness Of Fit ◽

Factorial Validity ◽

Fit Indices ◽

Short Forms ◽

Confirmatory Factor ◽

Positive Correlations ◽

Future Work

The Worry Domains Questionnaire was proposed as a measure of both pathological and nonpathological worry, and assesses the frequency of worrying about five different domains: relationships, lack of confidence, aimless future, work, and financial. The present study analyzed the factor structure of the long and short forms of the WDQ (WDQ and WDQ-SF, respectively) through confirmatory factor analysis in a sample of 262 students (M age = 21.8; SD = 2.6; 86.3% females). While the goodness-of-fit indices did not provide support for the WDQ, good fit indices were found for the WDQ-SF. Furthermore, no source of misspecification was identified, thus, supporting the factorial validity of the WDQ-SF scale. Significant positive correlations between the WDQ-SF and its subscales with worry (PSWQ), anxiety (STAI-T), and depression (BDI) were found. The internal consistency was good for the total scale and for the subscales. This work provides support for the use of the WDQ-SF, and potential uses for research and clinical purposes are discussed.

Download Full-text

Task and Relationship Conflict at Work

European Journal of Psychological Assessment ◽

10.1027/1015-5759/a000064 ◽

2011 ◽

Vol 27 (3) ◽

pp. 171-178 ◽

Cited By ~ 32

Author(s):

Nale Lehmann-Willenbrock ◽

Anna Grohmann ◽

Simone Kauffeld

Keyword(s):

Factor Analysis ◽

Confirmatory Factor Analysis ◽

Negative Impact ◽

Longitudinal Design ◽

Industrial Sector ◽

Task Conflict ◽

Relationship Conflict ◽

Factor Solution ◽

Convenience Sample ◽

Confirmatory Factor

The distinction between task and relationship conflict is well established. Based on Jehn’s (1995) intragroup conflict scale, we developed an economic six-item questionnaire for assessing relationship and task conflict in work groups. Confirmatory factor analysis was performed on data from a convenience sample (N = 247), and confirmed the original two-factor solution. The stability of the obtained two-factor solution was supported by confirmatory factor analysis in a longitudinal design with a second sample (N = 431) from the industrial sector. In line with previous research, the two types of conflict were intercorrelated. Moreover, the two subscales showed differential longitudinal effects on team outcomes. Task conflict was beneficial for performance in nonroutine tasks (but not in routine tasks). Relationship conflict had a negative impact on team viability and coworker trust.

Download Full-text