ERIC Number: ED226052
Record Type: RIE
Publication Date: 1982-Dec
Reference Count: 0
Predictive Efficiency of Direct, Repeated Measurement: An Analysis of Cost and Accuracy in Classification.
Marston, Doug; And Others
Two studies were conducted to examine the efficacy of direct measurement, standardized achievement tests, and aptitude-achievement discrepancy scores in distinguishing learning disabled (LD) and nonlearning disabled (NLD) students in grades 3 to 6. For both reading (Study I) and written expression (Study II), students' scores on direct and repeated measures (Words in Isolation and Oral Reading) predicted their classification as LD or NLD as well as commercial measures of achievement (Stanford Diagnostic Reading Test, the Peabody Individual Achievement Test, and the Test of Written Language) and aptitude-achievement discrepancy (the Woodcock-Johnson Psycho-Educational Battery). However, the direct measures required significantly smaller expenditures, both in terms of cost and time. The additional benefit was the use of direct, repeated measures to obtain common data bases across decisions affording continuity between information collected during assessment and the information needed to evaluate instruction. (Author/PN)
Descriptors: Achievement Tests, Cost Effectiveness, Data Collection, Elementary Education, Identification, Learning Disabilities, Predictive Measurement, Screening Tests, Special Education, Student Evaluation, Student Placement, Test Reliability
Editor, IRLD, 350 Elliott Hall, 75 East River Road, University of Minneapolis, MN 55455 ($3.00)
Publication Type: Reports - Research
Education Level: N/A
Sponsor: Department of Education, Washington, DC.
Authoring Institution: Minnesota Univ., Minneapolis. Inst. for Research on Learning Disabilities.
Identifiers: Discrepancy Analysis; Peabody Individual Achievement Test; Stanford Diagnostic Reading Test; Woodcock Johnson Psycho Educational Battery