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Direct linkPeterson, Robin L.; McGrath, Lauren M.; Willcutt, Erik G.; Keenan, Janice M.; Olson, Richard K.; Pennington, Bruce F. – Journal of Learning Disabilities, 2021
Despite historical emphasis on "specific" learning disabilities (SLDs), academic skills are strongly correlated across the curriculum. Thus, one can ask how specific SLDs truly are. To answer this question, we used bifactor models to identify variance shared across academic domains (academic "g"), as well as variance unique to…
Descriptors: Learning Disabilities, Elementary School Students, Secondary School Students, Clinical Diagnosis
Lewis, Katherine E.; Fisher, Marie B. – Journal for Research in Mathematics Education, 2016
Although approximately 5-8% of students have a mathematical learning disability (MLD), researchers have yet to develop a consensus operational definition. To examine how MLD has been identified and what mathematics topics have been explored, the authors conducted a systematic review of 165 studies on MLD published between 1974 and 2013. To move…
Descriptors: Mathematics Education, Mathematics, Mathematics Instruction, Learning Disabilities
Download full textAlgozzine, Bob; McGraw, Karen – 1979
The Mathematics subtest of the Peabody Individual Achievement Test is analyzed and its content represented in a format similar to that used in diagnostic math tests. An error analysis matrix is provided and its use is illustrated with application to the mathematics performance of a sixth grade child. The subtest is recommended as a diagnostic test…
Descriptors: Diagnostic Tests, Elementary Education, Error Patterns, Learning Disabilities
PDF pending restorationHarmer, William R.; Williams, Fern – 1978
A comparison of the Wide Range Achievement Test (WRAT) and the Peabody Individual Achievement Test (PIAT) indicates that the two should be used interchangeably only with caution and understanding of the differences. While there is a moderate to high correlation between the test scores, nevertheless, the two have distinctly different strengths and…
Descriptors: Achievement Tests, Comparative Analysis, Comparative Testing, Elementary Secondary Education
Peer reviewedLamanna, Joseph A.; Ysseldyke, James E. – Psychology in The Schools, 1973
This study is designed to add to existing reliability information about the Peabody Individual Achievement Test (PIAT) when used with first grade children only. Internal consistency and item-total correlations for each sub test are investigated. Test-retest reliability data are reported, and the coefficients obtained as measures of internal…
Descriptors: Academic Achievement, Achievement Tests, Correlation, Mathematics
Peer reviewedHarmer, William R.; Williams, Fern – Journal of Learning Disabilities, 1978
The article presents a statistical and descriptive comparison, with emphasis on math subtests, of the Wide Range Achievement Test and the Peabody Individual Achievement Test, based on scores obtained from clients (in grades 1-12) at a university-affiliated learning disabilities center. (SBH)
Descriptors: Achievement Tests, Age Differences, Elementary Secondary Education, Exceptional Child Research
Peer reviewedAlgozzine, Bob; McGraw, Karen – Teaching Exceptional Children, 1980
The article addresses the usefulness of the Peabody Individual Achievement Test (PIAT) in assessing various levels of arithmetic performance. The mathematics subtest of the PIAT is considered in terms of purpose; mathematical abilities subsections (foundations, basic facts, applications); diagnostic testing (the error analysis matrix); and poor…
Descriptors: Achievement Tests, Diagnostic Tests, Disabilities, Educational Diagnosis
Riggs, Joyce – 1979
Academic and behavioral assessment of learning disabled students (ages 3-11 years) at the Greene County Learning Center (Xenia, OH) is comprised of three tests (Woodcock Reading Mastery Tests, the Peabody Individual Achievement Test, and Group Learning Skills Tests) and teacher observation. An individualized educational program is determined based…
Descriptors: Diagnostic Teaching, Educational Diagnosis, Elementary Education, Identification
