Bifactor model of WISC-IV : Applicability and measurement invariance in low and normal IQ groups
- Authors: Gomez, Rapson , Vance, Alasdair , Watson, Shaun
- Date: 2016
- Type: Text , Journal article
- Relation: Psychological Assessment Vol. 29, no. 17 (2016), p. 902-912
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- Description: This study examined the applicability and measurement invariance of the bifactor model of the 10 Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) core subtests in groups of children and adolescents (age range from 6 to 16 years) with low (IQ =79; N = 229; % male = 75.9) and normal (IQ >/=80; N = 816; % male = 75.0) IQ scores. Results supported this model in both groups, and there was good support for measurement invariance for this model across these groups. For all participants together, the omega hierarchical and explained common variance (ECV) values were high for the general factor and low to negligible for the specific factors. Together, the findings favor the use of the Full Scale IQ (FSIQ) scores of the WISC-IV, but not the subscale index scores. (PsycINFO Database Record
Measurement invariance across adult self-ratings of current and retrospective childhood ADHD symptoms
- Authors: Gomez, Rapson , Stavropoulos, Vasileios , Watson, Shaun
- Date: 2020
- Type: Text , Journal article
- Relation: Journal of Psychopathology and Behavioral Assessment Vol. 42, no. 3 (2020), p. 475-487
- Full Text: false
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- Description: This study examined measurement invariance across adult self-ratings of current and retrospective childhood ADHD symptoms. A group of 265 adults (135 females and 130 males) from the general community completed ratings of their current and retrospective childhood ADHD symptoms presented in the Barkley Adult ADHD Rating Scale-IV (BAARS-IV; Barkley 2011). Initially, confirmatory factor analysis (CFA) of the both sets of ratings provided more support for a bifactor ADHD model (a model with an orthogonal general factor and specific factors for inattention [IA] and hyperactivity/impulsivity [HI]) over a 2-factor oblique model (with factors for IA and HI). Using the bifactor model, chi-square difference test indicated non-invariance for 12 factor loadings on the general factor, and 13 thresholds. Differences in approximate fit indices indicated that only 4 factor loadings were not invariant. The clinical theoretical, and psychometric implications of the findings are discussed. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
In search of the optimum structural model for internet gaming disorder
- Authors: Stavropoulos, Vasileios , Gomez, Rapson , Griffiths, Mark
- Date: 2021
- Type: Text , Journal article
- Relation: BMC Psychiatry Vol. 21, no. 1 (2021), p.
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- Description: Background: Internet gaming Disorder (IGD) constitutes a recently proposed clinical disorder (American Psychiatric Association, Diagnostic and statistical manual of mental disorders, 2013). The present study examined if IGD is best conceptualized as categorical (present/absent), or dimensional (severity ranging from low to high), or both (i.e., hybrid of categorical/dimensional). Methods: Ratings of the nine DSM-5 IGD symptoms, as presented in the Internet Gaming Disorder Scale 9-Short Form (Pontes & Griffiths, Comput Hum Behav 45:137-143, 2015), from 738 gamers, aged 17 to 72 years, were collected. Confirmatory factor analysis (CFA), latent class analysis (LCA), and factor mixture modelling analysis (FMMA) procedures were applied to determine the optimum IGD model. Results: Although the findings showed most support for a FFMA model with two classes and one factor, there was also good statistical and substantive support for the one-factor CFA model, and the LCA model with three classes. Conclusion: It was concluded that while the optimum structure of IGD is most likely to be a hybrid model (i.e., concurrently categorical and dimensional), a uni-dimensional model and/or a three-class categorical model are also plausible. © 2021, The Author(s).
The association of depression and sense of belonging with suicidal ideation among older adults : Applicability of resiliency models
- Authors: McLaren, Suzanne , Gomez, Rapson , Bailey, Maria , Vanderhorst, Renee
- Date: 2007
- Type: Text , Journal article
- Relation: Suicide and Life-Threatening Behavior Vol. 37, no. 1 (2007), p. 89-102
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- Description: Suicide among older people, especially men, is a significant problem. In this study the applicability of the compensatory, the risk-protective, the challenge, and the protective-protective models of resiliency for the prediction of suicidal ideation from depression (the risk factor) and sense of belonging to the community (the protective factor) was investigated. A total of 351 retired Australians (130 males and 221 females), with a mean age of 71.31 years (SD = 7.99), completed the Zung Depression Scale, the suicide subscale of the General Health Questionnaire, and the Sense of Belonging Instrument. When sense of belonging (psychological) was the protective factor, results indicated support for the risk-protective model for men and women, and for the compensatory model for women only. In contrast, when sense of belonging (antecedents) was the protective factor, support was evident for the compensatory model for men and women, and for the challenge model for women only. Results indicate that interventions should be developed to enhance sense of belonging among aging adults. © 2007 The American Association of Suicidology.
- Description: C1
- Description: 2003005765
ROC analyses of relevant conners 3–short forms, CBCL, and TRF scales for screening ADHD and ODD
- Authors: Gomez, Rapson , Vance, Alasdair , Watson, Shaun , Stavropoulos, Vasileios
- Date: 2019
- Type: Text , Journal article
- Relation: Assessment Vol. 28 , no.1 (2021), p. 73-85
- Full Text: false
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- Description: Receiver operating characteristic curve analysis was used to examine and compare the diagnostic accuracy of the Conners 3–Parent Short Form (C 3-P(S)), and the Conners 3–Teacher Short Form (C 3-T(S)) inattention and hyperactivity/impulsivity scales, and the Child Behavior Checklist (CBCL) and Teacher’s Report Form (TRF) attention problems scales, to distinguish those with and without attention deficit/hyperactivity disorder (ADHD). It also examined and compared the diagnostic accuracy of the C 3-P(S) and C 3-T(S) Aggression (AG) scales, and the CBCL and TRF Aggressive Behavior (AB) scales, to distinguish those with and without oppositional defiant disorder (ODD). The study used archival data (N = 150-261) involving a large group of clinic-referred children aged between 6 and 11 years who had been interviewed for clinical diagnosis of ADHD and ODD using the Anxiety Disorders Interview Schedule for Children (ADISC-IV) as the reference standard, and then administered one or more of the screening measures. The findings provided empirical support for the use of the C 3-P(S) and CBCL for identifying ADHD and ODD, with the CBCL aggressive behavior scale having better ability to detect ODD. The implications of the findings for using the screening scales for diagnoses of ADHD and ODD are discussed. © The Author(s) 2019.
Unraveling the optimum latent structure of attention-deficit/hyperactivity disorder : evidence supporting ICD and HiTOP frameworks
- Authors: Gomez, Rapson , Liu, Lu , Krueger, Robert , Stavropoulos, Vasileios , Downs, Jenny
- Date: 2021
- Type: Text , Journal article
- Relation: Frontiers in Psychiatry Vol. 12, no. (2021), p.
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- Description: Attention Deficit/hyperactivity disorder (ADHD) is conceptualized differently in the Diagnostic and Statistical Manual (DSM-5), the International Classification of Diseases-10 (ICD-10), and the Hierarchical Taxonomy of Psychopathology (HiTOP) frameworks. This study applied independent cluster confirmatory factor analysis (ICM-CFA), exploratory structure equation model with target rotation (ESEM), and the S-1 bi-factor CFA approaches to evaluate seven ADHD models yielded by different combinations of these taxonomic frameworks. Parents and teachers of a community sample of children (between 6 and 12 years of age) completed the Disruptive Behavior Rating Scale (for ADHD symptoms) and the Strengths and Difficulties Questionnaire (for validation). Our findings for both parent and teacher ratings provided the most support for the S-1 bi-factor CFA model comprised of (i) a g-factor based on ICD-10 impulsivity symptoms as the reference indicators and (ii) inattention and hyperactivity as specific factors. However, the hyperactivity-specific factor lacked clarity and reliability. Thus, our findings indicate that ADHD is best viewed as a disorder primarily reflecting impulsivity, though with a separable inattention (but no hyperactivity) component, i.e., “ADID (attention deficit/impulsivity disorder).” This model aligns with the HiTOP proposals. © Copyright © 2021 Gomez, Liu, Krueger, Stavropoulos, Downs, Preece, Houghton and Chen.
Correlated trait–correlated method minus one analysis of the convergent and discriminant validity of the conners 3 short forms
- Authors: Gomez, Rapson , Vance, Alasdair , Stavropoulos, Vasileios
- Date: 2020
- Type: Text , Journal article
- Relation: Assessment Vol. 27, no. 7 (2020), p. 1463-1475
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- Description: This study used the correlated trait–correlated method minus one model to examine the convergent and discriminant validity of the scales of the Conners 3 Short [C 3 (S)]. The C 3 (S) scales in the analysis were inattention (IN), hyperactivity/impulsivity (HY), learning problems (LP; learning problems/executive functioning from the teacher version), aggression (AG), and peer relations (PR, only for parent and teacher versions). A total of 529 adolescents and children (75% males, mean age = 11.75 years, SD = 2.97 years) provided self-ratings, and were also rated by their mothers and teachers. The findings indicated no support for the convergence of IN and HY across the three respondents. In contrast, there was convergence for LP, AG, and PR. There was support for the discriminant validity of the traits, except between IN and HY. The findings are discussed in relation to the convergent and discriminant validity of the C 3 (S) measures, and the clinical use of the C 3 (S). © The Author(s) 2018.
Greek validation of the factor structure and longitudinal measurement invariance of the strengths and difficulties questionnaire-self report (SDQ-SR) : exploratory structural equation modelling
- Authors: Gomez, Rapson , Motti-Stefanidi, Frosso , Jordan, Scott , Stavropoulos, Vasileios
- Date: 2021
- Type: Text , Journal article
- Relation: Child Psychiatry and Human Development Vol. 52, no. 5 (2021), p. 880-890
- Full Text: false
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- Description: The study examined the factor structure and longitudinal measurement invariance over three time points (1-year apart) of the Strengths and Difficulties Questionnaire-Self Report (SDQ-SR) for ratings provided by adolescents in Greece. It used exploratory structural equation modelling (ESEM) to achieve these two goals. At time point one, a total of 968 adolescents (males = 508, and females = 460) between 12 and 17.9 years completed the SDQ-SR. In relation to factor structure, ESEM tested the fit of one- to five-factor models. The findings were interpreted as indicating most support for the ESEM model with three factors (the factors being dysregulation, peer problems, and prosocial behaviour). This model showed support for configural invariance and full metric invariance across the three time points. Except for two thresholds, all other thresholds were also invariant across the three time points. Thus, there was good support for longitudinal measurement invariance. The implications of the findings for use of the SDQ-SR are discussed. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
Confirmatory factor analysis and exploratory structural equation modeling of the structure of attention-deficit/hyperactivity disorder symptoms in adults
- Authors: Gomez, Rapson , Stavropoulos, Vasileios
- Date: 2021
- Type: Text , Journal article
- Relation: Assessment Vol. 28, no. 6 (Sep 2021), p. 1570-1582
- Full Text: false
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- Description: The Depression Anxiety and Stress Scales-21 (DASS-21) involves a simple structure firstorder three-factor oblique model, with factors for depression, anxiety, and stress. Recently, concerns have been raised over the value of using confirmatory factor analysis (CFA) for studying the factor structure of scales in general. However, such concerns can be circumvented using exploratory structural equation modeling (ESEM). Consequently, the present study used CFA and ESEM with target rotation to examine the factor structure of the DASS21 among an adult community. It compared first-order CFA, ESEM with target rotation, bifactor CFA (BCFA), and bi-factor BESEM with target rotation model with group/specific factors for depression, anxiety, and stress. A total of 738 adults (males = 374, and females =364; M = 25.29 years; SD = 7.61 years) completed the DASS-21. While all models examined showed good global fit values, one or more of the group/specific factors in the BCFA, ESEM with target rotation and BESEM with target rotation models were poorly defined. As the firstorder CFA model was most parsimonious, with well-defined factors that were also supported in terms of their reliabilities and validities, this model was selected as the preferred DASS21 model. The implications of the findings for use and revision of the DASS-21 are discussed