Taxometric analyses have proven helpful for distinguishing categorical and dimensional data. Many taxometric procedures require at least 3 variables for analysis. What if a construct is defined by only 2 conceptually nonredundant characteristics or a data set contains only 2 empirically nonredundant variables? In Study 1, we performed extensive…

Research on informant discrepancies has increasingly utilized difference scores. This article demonstrates the statistical equivalence of regression models using difference scores (raw or standardized) and regression models using separate scores for each informant to show that interpretations should be consistent with both models. First,…

Whenever one uses a composite scale score from item responses, one is tacitly assuming that the scale is dominantly unidimensional. Investigating the unidimensionality of item response data is an essential component of construct validity. Yet, there is no universally accepted technique or set of rules to determine the number of factors to retain…

Given that over 50 studies have been published using the Black Racial Identity Scale (BRIAS), the study of its dimensions and structural components are important to understanding Black people and the evolution of Black racial identity theory. Unconstrained and constrained confirmatory factor analysis models were estimated across males and females…

This study reported the development and validation of the Social Identities and Attitudes Scale (SIAS), a stereotype threat susceptibility measure. Exploratory and confirmatory factor analyses conducted with college students indicate that the scale possesses strong psychometric properties. The SIAS explained 65% of the variance in the items…

The purpose of this study is to apply the attribute hierarchy method (AHM) to a subset of SAT critical reading items and illustrate how the method can be used to promote cognitive diagnostic inferences. The AHM is a psychometric procedure for classifying examinees' test item responses into a set of attribute mastery patterns associated with…

Aim: This systematic review compares the validity, reliability, and clinical use of habitual physical activity (HPA) performance measures in adolescents with cerebral palsy (CP). Method: Measures of HPA across Gross Motor Function Classification System (GMFCS) levels I-V for adolescents (10-18y) with CP were included if at least 60% of items…

Three studies were designed to measure various indicators of the reliability and validity of the Preschool Behavior Screening System (PBSS) as a screening instrument for emotional and behavioral disorder risk status of children of preschool age. Study 1 and Study 2 served to establish evidence for content validity. Study 3 investigated one type of…

The purpose of this study was to develop a questionnaire that could measure preservice mathematics teachers' mathematics educational values. Development and validation of the questionnaire involved a sequential inquiry in which design principles were established from the existing literature and a pool of items was constructed then submitted to…

The experience of the International Society of Addiction Medicine in setting up the first international certification of clinical knowledge is reported. The steps followed and the results of a psychometric analysis of the tests from the first 65 candidates are reported. Lessons learned in the first 5 years and challenges for the future are…

The perception of time is heavily influenced by attention and memory, both of which change over the lifespan. In the current study, children (8 yrs), young adults (18-25 yrs), and older adults (60-75 yrs) were tested on a duration bisection procedure using 3 and 6-s auditory and visual signals as anchor durations. During test, participants were…

This study aimed to examine the psychometric properties of the Sensory Processing Measure-Hong Kong Chinese version (SPM-HKC), and to study the pattern of behavioral response of children towards sensory events across home and school settings. The two major forms of the SPM, Home Form and Main Classroom Form, were translated into Chinese in this…

Evaluation of visuoconstructional abilities is a common part of clinical neuropsychological assessment, and the Beery-Buktenica Developmental Test of Visual-Motor Integration (VMI; K. E. Beery & N. A. Beery, 2004) is often used for this purpose. However, few studies have examined its psychometric properties when used to assess children and…

This paper focuses on critical issues related to the identification of mathematically gifted children with learning difficulties (LDs). One purpose of the study is to broaden teachers' and educators' insight into the identification of gifted students with LDs, sometimes referred to as dual-exceptional children. A multiple case study approach was…

The objective was to determine the interest and psychometric properties of a new QOL self-assessment questionnaire suitable for children 8-12 years old measuring alpha, beta and gamma changes: the "Inventaire Systemique de Qualite de vie pour Enfants" (ISQV-E[C]). This was a cross-sectional validation study. 288 children have completed…