Factor structure of the Wide Range Assessment of Memory and Learning (WRAML) in children with insulin dependent diabetes mellitus (IDDM).

Maximum likelihood confirmatory factor analysis was performed with the Wide Range Assessment of Memory and Learning (WRAML) for a clinical sample of 246 children with insulin-dependent diabetes mellitus (IDDM). Consistent with previous literature examining the factor structure of the WRAML, findings supported the validity of a three-factor model including Verbal Memory, Visual Memory, and Attention/Concentration (AC) factors for this clinical sample. However, in contrast to previous factor analytic research, results also supported the validity of an alternative two-factor model consisting of a combined modality Memory/Learning (ML) factor and an AC factor. While the results suggest that the three-factor solution may provide an adequate characterization of memory and learning in the majority of this sample of children with IDDM, it appears that certain groups of children with IDDM, particularly those children with early disease onset and those who experience hypoglycemic seizures, may exhibit a specific profile of differences that may result in a lack of differentiation between the verbal and visual modalities.     

A Structural Equation Analysis of the Wide Range Assessment of Memory and Learning in a Clinical Sample

A maximum likelihood confirmatory factor analysis was performed by applying LISREL VII to the Wide Range Assessment of Memory and Learning (WRAML) in a clinical sample (N = 271). Analyses were designed to determine which of 10 hypothesized oblique factor solutions could best explain memory as measured by the WRAML. Competing latent variable models were identified in previous studies and monographs on memory. Findings supported a three-factor model including Verbal Memory, Visual Memory, and Attention/Concentration factors. Our results are consistent with previous studies suggesting that attention is an important component of memory as measured by the WRAML. This study replicates previous research in which the Learning Index was not empirically supported.     

Factor structure of the Behavior Rating Inventory of Executive Functions (BRIEF-P) at age three years

The preschool period is an important developmental period for the emergence of cognitive self-regulatory skills or executive functions (EF). To date, evidence regarding the structure of EF in preschool children has supported both unitary and multicomponent models. The aim of the present study was to test the factor structure of early EF as measured by the Behavior Rating Inventory of Executive Function-Preschool version (BRIEF-P). BRIEF-P consists of five subscales and three broader indexes, hypothesized to tap into different subcomponents of EF. Parent ratings of EF from a nonreferred sample of children recruited from the Norwegian Mother and Child Cohort Study (N = 1134; age range 37–47 months) were subjected to confirmatory factor analyses (CFA). Three theoretically derived models were assessed; the second-order three-factor model originally proposed by the BRIEF-P authors, a “true” first-order one-factor model and a second-order one-factor model. CFA fit statistics supported the original three-factor solution. However, the difference in fit was marginal between this model and the second-order one-factor model. A follow-up exploratory factor analysis (EFA) supported the existence of several factors underlying EF in early preschool years, with a considerable overlap with the five BRIEF-P subscales. Our results suggest that some differentiation in EF has taken place at age 3 years, which is reflected in behavior ratings. The internal consistency of the BRIEF-P five clinical subscales is supported. Subscale interrelations may, however, differ at this age from those observed in the preschool group as a whole.     

Confirmatory Factor Analysis of the Structure of Adult ADHD Symptoms

Previous research has examined the factor structure of ADHD symptoms in adults using confirmatory factor analysis and there is mixed support for two-factor, three-factor, or more complex bifactor models. The current study re-examines these factor structures on the basis of not only overall model fit, but also criteria such as chi-square difference tests, invariance, reliability, and validity. Three datasets were pooled to form a total sample of 430 adults (50% female). Participants completed questionnaires assessing their ADHD symptoms, education, psychopathology, and parenting (the latter as validity variables). Although the bifactor models demonstrated the best fit, the reliability and construct replicability of specific factors in these models was poor. The three-factor model had good fit and demonstrated good reliability, validity, construct replicability, and some invariance across gender and dataset. Our results replicate previous studies that find superior fit for bifactor models. However, the superior statistical fit may reflect only the increased complexity of these models. The more parsimonious three-factor model may demonstrate stronger validity and clinical utility.     

Use of the everyday memory questionnaire with children.

The Everyday Memory Questionnaire (EMQ; Sunderland, Harris, & Baddeley, 1983) was examined for its suitability to assess children's memory. The parents of 226 school children (6-12 years) completed the EMQ in relation to their own children. A subset of these children (N = 101), in 6, 8 and 10 years age groups, completed subtests of the Wide Range Assessment of Memory and Learning (WRAML; Sheslow & Adams, 1990). Comparison of EMQ and WRAML data found aspects of verbal memory correlated moderately with the EMQ in the 10 years age group. There were no meaningful correlations in the 8 years age group. In the 6 years age group aspects of visual memory correlated moderately with the EMQ. The diagnostic utility of the EMQ for children was assessed by comparing the school group to children diagnosed with ADHD and/or learning disorders. Diagnostic indicators revealed the EMQ to have high sensitivity (89%) but poor positive predictive power, identifying 40% of the school group as having memory deficits. Negative predictive power (confirming a negative diagnosis) was high. Validity data suggested that the EMQ could be useful with children at least as young as 10 years and further research needs to be conducted to establish the utility of the EMQ in clinical groups with primary memory deficits.     

A confirmatory factor analysis of the California Verbal Learning Test--Second Edition (CVLT-II) in the standardization sample

The purpose of this study is to determine the latent structure of the California Verbal Learning Test-Second Edition (CVLT-II; Delis, Kramer, Kaplan, & Ober, 2000) at three different age levels, using the standardization sample. Maximum likelihood confirmatory factor analyses are performed to test four competing hypothetical models for fit and parsimony. A four-factor model consisting of Attention Span, Learning Efficiency, Delayed Memory, and Inaccurate Memory provides the best fit to the data at two age levels (16-30 years and 31-60 years, respectively) but the factor structure is somewhat less robust in the oldest age group (>60 years). The results clarify the latent structure of the CVLT-II and suggest that a multifactorial interpretation of quantitative and qualitative indexes from this instrument is appropriate for clinical practice with most adults, although findings may need to be interpreted more cautiously among older persons.     

Confirmatory factor analysis of the behavior rating inventory of executive function in a neuro-pediatric sample and its application to mental disorders

The construct validity of the 9-scale version of the Behavior Rating Inventory of Executive Function (BRIEF) parent form was examined in a clinical sample of children and adolescents with neurological and neurodevelopmental disorders (N = 281). Confirmatory factor analysis supported a three-factor model separating the inhibitory behavioral control dimension from the emotional control and metacognitive problem-solving dimensions. The Metacognitive factor was also related to a diagnosis of attention deficit/hyperactivity disorder (ADHD) after controlling for age, gender, IQ, adaptive functioning, and a conventional behavioral rating scale, which included inattention-hyperactivity symptoms. The Emotional Regulation factor was related to a diagnosis of oppositional defiant disorder. Correlational analyses indicated that child comorbid emotional and behavioral problems may exacerbate parental BRIEF reporting. Accordingly, when assessing executive function among children with neurological and neurodevelopmental disorders, the BRIEF should be complemented with assessments of mental health problems.     

Use of the Everyday Memory Questionnaire With Children

The Everyday Memory Questionnaire (EMQ; Sunderland, Harris, & Baddeley, 1983) was examined for its suitability to assess children's memory. The parents of 226 school children (6-12 years) completed the EMQ in relation to their own children. A subset of these children (N=101), in 6, 8 and 10 years age groups, completed subtests of the Wide Range Assessment of Memory and Learning (WRAML; Sheslow & Adams, 1990). Comparison of EMQ and WRAML data found aspects of verbal memory correlated moderately with the EMQ in the 10 years age group. There were no meaningful correlations in the 8 years age group. In the 6 years age group aspects of visual memory correlated moderately with the EMQ. The diagnostic utility of the EMQ for children was assessed by comparing the school group to children diagnosed with ADHD and/or learning disorders. Diagnostic indicators revealed the EMQ to have high sensitivity (89%) but poor positive predictive power, identifying 40% of the school group as having memory deficits. Negative predictive power (confirming a negative diagnosis) was high. Validity data suggested that the EMQ could be useful with children at least as young as 10 years and further research needs to be conducted to establish the utility of the EMQ in clinical groups with primary memory deficits.     

Confirmatory Factor Analysis of the Behavior Rating Inventory of Executive Function (BRIEF): Support for a distinction between Emotional and Behavioral Regulation

Previous research has supported a three-factor division of the Behavior Rating Inventory of Executive Function (BRIEF) when dividing the parent form in 9 instead of 8 subscales. The present study investigated different factor models in the 8- and 9-scale division in both the parent and teacher form of the Norwegian BRIEF version. Confirmatory Factor Analyzes showed best fit for the three-factor model in a mixed healthy and clinical sample, indicating a distinction between Emotional and Behavioral Regulation. This division is in accordance with present knowledge of brain function and may increase the specificity of executive dysfunction in clinical groups.     

The Prospective and Retrospective Memory Questionnaire (PRMQ): factorial structure, relations to global subjective memory ratings, and Swedish norms

The factorial structure of the Prospective and Retrospective Memory Questionnaire (PRMQ; Smith et al., 2000) was examined in a Swedish population based sample (N= 540, age range; 35-90 years). Concurrent validity was assessed by relating PRMQ to global ratings of memory. Confirmatory factor analyses of the PRMQ items indicated a superior fit of a three-factor model, with prospective and retrospective memory as orthogonal factors and episodic memory as a common factor. Furthermore, the PRMQ scales correlated with the global ratings of memory, suggesting that each rating contributed with unique variance in predicting PRMQ scores. Given differences in levels of complaints as compared with prior research (Crawford et al., 2003) norms for the Swedish version are provided. In conclusion, the present findings extend earlier work by providing additional support for the construct and concurrent validity of the PRMQ scales.     

Construct validity of the California Verbal Learning Test--Children's Version (CVLT-C) after pediatric traumatic brain injury

The purpose of this study was to determine the latent structure of the California Verbal Learning Test--Children's Version (CVLT-C; D. Delis, J. Kramer, E. Kaplan, & B. Ober, 1994) in a sample of 175 children with traumatic brain injury (TBI). Maximum-likelihood confirmatory factor analyses were performed to test 6 competing hypothetical models for fit and parsimony. A 4-factor model consisting of Attention Span, Learning Efficiency, Delayed Recall, and Inaccurate Recall provided the best fit to the data. The results support the construct validity of the CVLT-C in children with TBI and suggest that a multifactorial interpretation of quantitative indexes from this instrument is appropriate for clinical practice.     

The Brief Problem Monitor (BPM-Y/BPM-P) Among Chinese Youth: Psychometric Properties and Measurement Invariance

The Brief Problem Monitor (BPM) is a 19-item instrument newly developed for screening children and adolescents for emotional and behavioral problems. The aim of this study was to investigate the psychometric properties of the youth-report and parent-report versions of the BPM (BPM-Y and BPM-P) among Chinese youth. Data was collected from two samples: a middle school student sample (n?=?1,246, girls?=?516 [41.4%]) and a community youth sample from families suffering adversity (n?=?383, girls?=?143 [37.3%]). We conducted a series of confirmatory factor analyses to test and compare the latent structures of the BPM-Y and BPM-P. Results suggested that the three-factor model of the BPM-Y and BPM-P fit the data best. And based on the omnibus fit indices and difference between them, the items of the BPM-Y and BPM-P support measurement invariance across informants (both youth- and parent-report) for the three-factor model. Internal consistency coefficients were satisfactory (Cronbach's α?=?.73?~?.90). In terms of convergent validity, BPM factors and BPM scores showed expected correlations with strength and difficulties behavior, callous–unemotional traits, psychopathic traits, and social competence. In sum, our findings supported that the three-factor structuure of BPM-Y and BPM-P could be a promising instrument to screen emotional and behavioral problems in Chinese youth.

     

Factor solutions of the Social Phobia Scale (SPS) and the Social Interaction Anxiety Scale (SIAS) in a Swedish population

Culturally validated rating scales for social anxiety disorder (SAD) are of significant importance when screening for the disorder, as well as for evaluating treatment efficacy. This study examined construct validity and additional psychometric properties of two commonly used scales, the Social Phobia Scale and the Social Interaction Anxiety Scale, in a clinical SAD population (n?=?180) and in a normal population (n?=?614) in Sweden. Confirmatory factor analyses of previously reported factor solutions were tested but did not reveal acceptable fit. Exploratory factor analyses (EFA) of the joint structure of the scales in the total population yielded a two-factor model (performance anxiety and social interaction anxiety), whereas EFA in the clinical sample revealed a three-factor solution, a social interaction anxiety factor and two performance anxiety factors. The SPS and SIAS showed good to excellent internal consistency, and discriminated well between patients with SAD and a normal population sample. Both scales showed good convergent validity with an established measure of SAD, whereas the discriminant validity of symptoms of social anxiety and depression could not be confirmed. The optimal cut-off score for SPS and SIAS were 18 and 22 points, respectively. It is concluded that the factor structure and the additional psychometric properties of SPS and SIAS support the use of the scales for assessment in a Swedish population.     

Assessment of Psychopathic Traits in Singaporean Adolescents: Validation of the Antisocial Process Screening Device (APSD)

There is little knowledge available concerning psychopathic traits in Asian adolescents; a lack of a suitable measurement instrument for assessing psychopathy in Asian societies may account for this. This study aimed to validate a widely used scale in the West — the Antisocial Process Screening Device (APSD) — in Singaporean school-based and at-risk adolescents. Using an exploratory factor analysis (EFA) and a confirmatory factor analysis (CFA), this study examined the two-factor (i.e., grandiose-manipulative/impulsive traits and callous-unemotional traits) and three-factor (i.e., grandiose-manipulative traits, impulsivity, and callous-unemotional traits) models of the APSD in 1027 school-based and 113 at-risk adolescents. School samples are adolescents from three secondary schools, while at-risk samples are adolescents who manifest different types of delinquent behaviors and are either placed in more structured settings or need closer supervision although they have not violated the law. Gender invariance was further tested in the school-based sample by conducting a multigroup CFA. The convergent validity of the APSD was also investigated in the school-based sample. For the school-based adolescents, the APSD revealed that the three-factor model provided a superior fit over the two-factor model and the factorial invariance across gender. Significant relationships between the three dimensions of the APSD and aggression and delinquency support the convergent validity of the APSD. As for the at-risk adolescents, both the two- and three-factor models were acceptable, but the two-factor model was preferred as it was parsimonious and it aligned with the conceptualized characteristics of psychopathic traits. Findings suggest that the APSD is a reliable and sound instrument for measuring psychopathic traits in Asian school-based and at-risk adolescents.     

Confirmatory Factor Analysis of the Behavior Rating Inventory of Executive Function (BRIEF) in a Clinical Sample

Evidence for the validity of the Behavior Rating Inventory of Executive Function (BRIEF; Gioia, Isquith, Guy, & Kenworthy, 2000) based on internal structure was examined in a sample of children with mixed clinical diagnoses via maximum likelihood confirmatory factor analysis. Four alternative factor models of children's executive function, based on current theories that posit a unidimensional versus fractionated model (Rabbitt, 1997; Shallice & Burgess, 1991), using the revised 9-scale BRIEF configuration that separates two components of the Monitor scale, were examined for model fit. A 3-factor structure best modeled the data when compared directly with 1-, 2-, and 4-factor models. The 3-factor model was defined by a Behavior Regulation factor consisting of the BRIEF Inhibit and Self-Monitor scales, an Emotional Regulation factor consisting of the Emotional Control and Shift scales, and a Metacognition factor composed of the Working Memory, Initiate, Plan/Organize, Organization of Materials, and Task-Monitor scales. The findings support a fractionated, multi-component view of executive function as measured by the BRIEF.     

Factor Structure and Discriminative Validity of the Eyberg Child Behavior Inventory With Young Children

This study examined the factor structure and discriminative validity of the Eyberg Child Behavior Inventory (ECBI) with community-based and clinic-referred samples of young children (2–6 years). In the community sample, confirmatory factor analysis indicated a three-factor structure with components reflecting Inattentive, Oppositional Defiant, and Conduct Problem Behavior. In the clinic sample, component scores differentiated children with specific behavior problems from children without significant externalizing symptoms. However, component scores did not differentiate within the externalizing spectrum. The data suggest that ECBI components may be useful to screen community-based and clinic-referred young children for externalizing symptoms, but may be less useful to identify children with specific behavior problems.     

Confirmatory factor analysis of the Behavior Rating Inventory of Executive Function (BRIEF) in a clinical sample.

Evidence for the validity of the Behavior Rating Inventory of Executive Function (BRIEF; Gioia, Isquith, Guy, & Kenworthy, 2000) based on internal structure was examined in a sample of children with mixed clinical diagnoses via maximum likelihood confirmatory factor analysis. Four alternative factor models of children's executive function, based on current theories that posit a unidimensional versus fractionated model (Rabbitt, 1997; Shallice & Burgess, 1991), using the revised 9-scale BRIEF configuration that separates two components of the Monitor scale, were examined for model fit. A 3-factor structure best modeled the data when compared directly with 1-, 2-, and 4-factor models. The 3-factor model was defined by a Behavior Regulation factor consisting of the BRIEF Inhibit and Self-Monitor scales, an Emotional Regulation factor consisting of the Emotional Control and Shift scales, and a Metacognition factor composed of the Working Memory, Initiate, Plan/Organize, Organization of Materials, and Task-Monitor scales. The findings support a fractionated, multi-component view of executive function as measured by the BRIEF.     

Assessing Parental Readiness to Change: A Psychometric Evaluation of the READI-SF in a Community Sample

Engagement in behavioral parent training programs continues to be a barrier to service delivery. Parental readiness is an important construct for understanding parental engagement in parent training services, as these programs place a high level of action-oriented demands on caregivers. The present study examines the performance of one parental readiness measure, the Readiness, Efficacy, Attributions, Defensiveness, and Importance Scale—Short Form (READI-SF) in a community-based sample. Participants included 103 families of children ages three to seven recruited from an urban charter school. Mothers completed an abbreviated version of the READI as well as indices of child disruptive behavior and a second measure of parental readiness. The psychometric properties and factor structure of the READI-SF are explored as well as indices of reliability and validity. Exploratory factor analysis revealed a three-factor model of readiness to change, treatment readiness, and perceived importance of the problem. Analyses also supported the validity and clinical utility of the measure, as READI-SF scores were found to predict attendance at a one-time parenting group. Lastly, the study examines the relationship between parental readiness and child disruptive behavior. Limitations and future directions are discussed.     

Cognitive styles in an international perspective: cross-validation of the Cognitive Style Indicator (CoSI)

This study examines the cross-cultural validity of the Cognitive Style Indicator (CoSI). Measurement equivalence tests were performed on data collected from a Belgian (n = 300) and a South African (n = 246) sample of students and employees. Confirmatory factor analyses within each sample showed the best fit to the data for a three-factor model underlying the CoSI. Measurement invariance tests, using multigroup confirmatory factor analysis, indicated that the relationships among the scales showed equivalence across cultures. Although the study is an important first step toward the cross-validation of the CoSI, further research in other international samples is particularly needed to strengthen these results.     

Factor Structure and Construct Validity of the Dutch Version of the Antisocial Process Screening Device

The goal of the present study was to evaluate the factor structure and construct validity of the Antisocial Process Screening Device (APSD) in a community sample of Dutch adolescents. Confirmatory factor analyses supported the two- and three-factor model, but the two-factor model (Callous-Unemotional and Impulsivity/Conduct Problems) was more parsimonious. Model fit was invariant across gender. Interrater reliability was good and internal consistency of the factors was modest to good, with the exception of the Callous-Unemotional factor. Convergence with the APSD self-report version, divergence with the Big Five personality dimensions of Agreeableness and Conscientiousness, and expected gender differences in mean APSD scores reproduced findings obtained in American samples, supporting the cross-cultural validity of the APSD.