The Wechsler Individual Achievement Test (WIAT-4) is the latest iteration of a popular instrument that psychologists employ to assess academic achievement. The WIAT-4 authors make both pragmatic and measurement claims about the instrument. The pragmatic claims involve being useful for identifying individuals in certain academic achievement-related…

This article reviews the administrative, scoring, and psychometric properties of the Wechsler Individual Achievement Test, Fourth Edition (WIAT-4, NCS Pearson, 2020). The WIAT-4 is one of the more commonly administered broadband measures of academic achievement. The instrument was determined to be well-conceptualized, and generally…

There is ongoing debate regarding what performance on the number line estimation task represents and its role in mathematics learning. The patterns followed by children's estimates on the number line task could provide insight into this. This study investigates children's estimation patterns on the number line task and assesses whether mathematics…

This study explored whether Year 1 school children exposed to a 12-week classroom-based gross motor program progressed differently than Year 1 children undertaking their regular school program in motor proficiency, mathematics, and reading outcomes. Fifty-five Australian Year 1 school children (25 boys, 30 girls, mean age 6.77 ± 0.40 years) were…

The purpose of this quantitative, causal-comparative study was to determine how, and to what degree learning methods (student-centered or instructor-centered) and gender independently or interactively made a difference in adult student achievement. The Wechsler Individual Achievement Test Third Edition (WIAT-III) was utilized to measure…

The association of phonological and lexical-semantic processes with spelling ability in children has received scant research interest even though uncovering such associations can increase our understanding of literacy development. A cross-sectional study was carried out with 42 6- and 8-year-old children in the southeast of Ireland. The children…

In order to make appropriate educational recommendations, psychologists must understand how cognitive test scores influence specific academic outcomes for students of different ability levels. We used data from the WISC-V and WIAT-III (N = 181) to examine which WISC-V Index scores predicted children's specific and broad academic skills and if…

The Wechsler individual achievement test, third edition (WIAT-III) is a popular individually administered achievement battery. Despite its ubiquity in assessment practice, scant research into its structure exists. We analyzed the structure of the WIAT-III in a sample of students in Grades 3-12 referred for special education evaluations (n = 355).…

Like all psychoeducational batteries, the Wechsler Individual Achievement Test, Fourth Edition (WIAT-4) requires independent investigation and analysis. The publisher provides multiple theories to support interpretation of its reading measures. At the word reading level, the battery includes a new Phonemic Proficiency subtest that the publisher…

Objective: We leveraged common genetic variation underlying ADHD, educational attainment (EA) and cognition (COG) to understand the nature of the Behavior Rating Inventory for Executive Functions (BRIEF) and its relationship to academic functioning. Method: Participants were 991 youth, ages 7 to 17, consecutively referred for neuropsychiatric…

Within the Canadian context, the two major learning disability classification systems are arguably the American Psychiatric Association's (APA) "Diagnostic and Statistical Manual of Mental Disorders" and the Learning Disabilities Association (LDAC) of Canada's "Official Definition of Learning Disabilities." Several of the more…

School psychologists use intelligence and academic achievement test scores to understand individual differences in abilities that may be directed towards learning and the learning that has already occurred. To make ethical and effective decisions regarding individualized educational programs and interventions, test users must understand the…

Little is known about the characteristics of academic overachievers, children whose achievement significantly exceeds IQ. Correlates of overachievement (achievement test scores = 1 SD above IQ), nondiscrepant achievement, and learning disability (LD; achievement = 1 SD below IQ) were analyzed in 1,543 children (739 ADHD, 285 autism, and 519…

Objectives/Background: Objectives were to (1) examine previous night's sleep in relation to next day performance on standardized academic achievement and neurocognitive assessments in adolescents, and (2) explore whether previous night's sleep is differentially associated with testing performance for adolescents with and without…

This article reports on a qualitative secondary data analysis of a study of upper elementary students' narrative writing progress in U.S. rural schools. It compares students working online in pairs with those working alone. We explain why the intervention had some positive effects for struggling writers but few effects for skilled writers. The…