A multitrait-multisource confirmatory factor analytic approach to the construct validity of ADHD and ODD rating scales with Malaysian children
- Authors: Gomez, Rapson , Burns, Leonard , Walsh, James , Hafetz, Nina
- Date: 2005
- Type: Text , Journal article
- Relation: Journal of Abnormal Child Psychology Vol. 33, no. 2 (2005), p. 241-254
- Full Text: false
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- Description: Confirmatory factor analysis (CFA) was used to model a multitrait by multisource matrix to determine the convergent and discriminant validity of measures of attention-deficit hyperactivity disorder (ADHD)-inattention (IN), ADHD-hyperactivity/impulsivity (HI), and oppositional defiant disorder (ODD) in 917 Malaysian elementary school children. The three trait factors were ADHD-IN, ADHD-HI, and ODD. The two source factors were parents and teachers. Similar to earlier studies with Australian and Brazilian children, the parent and teacher measures failed to show convergent and discriminant validity with Malaysian children. The study outlines the implications of such strong source effects in ADHD-IN, ADHD-HI, and ODD measures for the use of such parent and teacher scales to study the symptom dimensions. © 2005 Springer Science+Business Media, Inc.
- Description: C1
- Description: 2003001246
DSM-IV AD/HD symptoms: Prevalence, gender and age differences, and construct validity of parent and teacher ratings of Malaysian children
- Authors: Hafetz, Nina
- Date: 2007
- Type: Text , Thesis , PhD
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- Description: Attention-deficit/hyperactivity disorder (AD/HD) is marked by deficits in attention, hyperactivity and impulsivity (American Psychiatric Association, 1994). The current DSM-IV conceptualisation of AD/HD as comprising of separate, but related, Inattention (IA) and Hyperactivity/Impulsivity (H/I) dimensions have been supported in confirmatory factor analytic (CFA) studies. Despite being one of the most extensively studied childhood disorder, there is a lack of research on AD/HD in non-western populations. Research on AD/HD in Asian countries, particularly, is limited. To date, no study has comprehensively investigated the characteristics of AD/HD in a Malaysian sample. The current study had 4 major aims. The first aim of the study was to investigate how the IA and H/I symptoms groups vary by age, gender, and age by gender interaction. The second aim of the study was to obtain prevalence rates of DSM-IV AD/HD and the three subtypes (i.e., Predominantly Inattentive Type, AD/HD-IA; Predominantly Hyperactive/Impulsive Type, AD/HD-H/I; and Combined Type, AD/HD-C) within this population. This was examined for boys and girls separately, and together. The third aim of the study was to investigate the internal validity of DSM-IV AD/HD using single source confirmatory factor analysis (CFA), while the fourth aim of the study was to examine trait, source and error variance of the AD/HD symptoms using the CFA multitrait (IA and H/I) by multisource (parent and teacher) approach (CFA MT-MS). All the CFA and CFA MT-MS analyses were conducted separately for boys and girls and used scores recoded via the binary method, as opposed to the ordinal scoring method. The sample consisted of 934 Malaysian schoolchildren aged 6-12 years (436 boys: mean age 8.86 years; and 498 girls: mean age 9.02 years) [...] There was more source than trait variance for parent rated H/I and teacher rated IA for girls. Unique to the current study is the use of binary as opposed to ordinal data to run the CFA and MTMS analysis. The implications of the findings for the conceptualisation, assessment, treatment, psychometric properties of AD/HD rating scales and the recognition of AD/HD in the Malaysian population are discussed. Suggestions for future research are offered.
- Description: Doctor of Psychology (Clinical)
DSM-IV ADHD: Prevalence based on parent and teacher ratings of Malaysian primary school children
- Authors: Gomez, Rapson , Hafetz, Nina
- Date: 2011
- Type: Text , Journal article
- Relation: Asian Journal of Psychiatry Vol. 4, no. 1 (2011), p. 41-44
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- Description: Based on Malaysian parent and teacher agreement for ratings of their primary school-aged children on a scale comprising the Diagnostic and Statistical Manual of Mental Disorders- IV Attention-Deficit/Hyperactivity Disorder symptoms, this study examined the prevalence rates of the three ADHD types. The prevalence rates for the Inattentive, Hyperactive-Impulsive, and Combined types were 0.96%, 0.32%, and 0.32%, respectively. For all types together, the male to female ratio was 4:1. © 2011 Elsevier B.V.
Measurement and structural invariance of parent ratings of ADHD and ODD symptoms across gender for American and Malaysian children
- Authors: Burns, Leonard , Walsh, James , Gomez, Rapson , Hafetz, Nina
- Date: 2006
- Type: Text , Journal article
- Relation: Psychological Assessment Vol. 18, no. 4 (2006), p. 452-457
- Full Text: false
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- Description: The purpose of this study was to examine the measurement (configural, metric, scalar, and residual) and structural (factor variance, factor covariance, and factor means) invariance of parent ratings of the attention-deficit/hyperactivity disorder-inattention (ADHD-IN), ADHD-hyperactivity/impulsivity (ADHD-HI), and oppositional defiant disorder (ODD) symptoms as described in the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994) across boys and girls. In an American pediatric sample (N = 1,015) and a Malaysian elementary school-age sample (N = 928), there was strong support for configural, metric, scalar, residual, factor variance, and covariance invariance across gender within each sample. Both American and Malaysian boys had significantly higher scores on the ADHD-IN and ADHD-HI factor means than did girls, whereas only in the American sample did boys score significantly higher on the ODD factor than did girls. The implications of the results for the study of gender, ethnic, and cultural differences associated with ADHD and ODD are discussed. © 2006 APA, all rights reserved.
- Description: C1
- Description: 2003002033
Oppositional defiant disorder: Prevalence based on parent and teacher ratings of Malaysian primary school children
- Authors: Gomez, Rapson , Hafetz, Nina , Gomez, Rashika
- Date: 2013
- Type: Text , Journal article
- Relation: Asian Journal of Psychiatry Vol. 6, no. 4 (2013), p. 299-302
- Full Text: false
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- Description: Background: This study examined the prevalence rate of Oppositional Defiant Disorder (ODD) in Malaysian primary school children. Methods: In all 934 Malaysian parents and teachers completed ratings of their children using a scale comprising DSM-IV-TR ODD symptoms. Results: Results showed rates of 3.10%, 3.85%, 7.49% and 0.64% for parent, teacher, parent or teacher ("or-rule"), and parent and teacher ("and-rule") ratings, respectively. When the functional impairment criterion was not considered, the rate reported by parents was higher at 13.28%. Discussion: The theoretical, diagnostic and cultural implications of the findings are discussed. © 2013 Elsevier B.V.
- Description: C1