R. S. Mccallum

Publications91
h-index21
Citations1,485
Highly Influential Citations106
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The Universal Nonverbal Intelligence Test
The Universal Nonverbal Intelligence Test (UNIT) can be conceptualized as a measure of intelligence, obtained nonverbally. The UNIT is designed to provide a unique measure of cognitive organization… Expand
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Silent versus oral reading comprehension and efficiency
Seventy-four students read passages from an individually administered test of reading comprehension (a subtest from the Test of Dyslexia, a test of reading and related abilities currently in… Expand
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A Model for Screening Twice-Exceptional Students (Gifted With Learning Disabilities) Within a Response to Intervention Paradigm
The purpose of this article is to present a model for screening for twice-exceptional status (i.e., gifted students who have a learning disability). Curriculum-based measures (Monitoring… Expand
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Developing math automaticity using a classwide fluency building procedure for middle school students: A preliminary study
To investigate the influence of an innovative math fluency intervention, 36 middle-school students were randomly assigned to either an experimental (the Detect, Practice, Repair [DPR]) or control… Expand
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Universal Nonverbal Intelligence Test (UNIT).
Standardization Issues: • 2,100 children, ages 5-00 to 18-11, were sampled and stratified by gender, race, region, parental education, community setting, regular classroom vs. special education… Expand
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Reading Rate and Comprehension as a Function of Computerized versus Traditional Presentation Mode: A Preliminary Study
TLDR
Using a counterbalanced, randomized treatment design, 12 elementary school-aged children read under two conditions: (a) independent, silent reading; and (b) computer-assisted reading, via Kurzweil 3000. Expand
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Relationship of School-Based Attributions to Depression
Relationships among attributions for success and failure and depression were investigated for 63 5th-grade students. Significant relationships were found among school-based attributions, as measured… Expand
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Toward a Research-Based Assessment of Dyslexia
One hundred five participants from a random sample of elementary and middle school children completed measures of reading achievement and cognitive abilities presumed, based on a synthesis of current… Expand
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Essentials of Nonverbal Assessment
Chapter 1. Overview: Assessing Diverse Populations with Nonverbal Tests of Intelligence Chapter 2. Unidimensional Nonverbal Tests. Chapter 3. Multidimensional Nonverbal Intelligence Tests:… Expand
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Predicting Women's Persistence in Adult Literacy Classes with Dispositional Variables
Adult literacy programs offer individuals, particularly women, opportunities to improve their educational levels and economic circumstances; however, persistence in these programs is an issue for… Expand
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