ERIC Number: ED025434
Record Type: RIE
Publication Date: 1968
Reference Count: N/A
An Instrument of Measurement to Appraise the Arithmetic Abilities of Educable Mentally Retarded Children Ages Thirteen Through Sixteen.
Connolly, Austin Jay
This study was concerned with the development of a consistent and reliable arithmetic achievement test to assess the arithmetic ability of educable mentally retarded youngsters ranging in age from thirteen through sixteen. The instrument so constructed is intended to be administered individually, and it requires the subject to do little reading or writing. The reliability of the instrument was analyzed with the test-retest and split-half methods. The test-retest method yielded a reliability coefficient (Pearson Product-Moment) of .968 with a Standard Error of Measurement of 3.762. The split-half method produced a Pearson r of .972 with a Standard Error of Measurement of 1,593. Both of the reliability coefficients were significant at the one per cent level. (RP)
Descriptors: Achievement, Arithmetic, Evaluation, Low Ability Students, Mathematics, Measurement Instruments, Test Construction, Tests
University Microfilms, 300 North Zeeb Road, Ann Arbor, Michigan 48106 (Order No. 68-14,719, Microfilm $3.00, Xerography $7.40).
Publication Type: N/A
Education Level: N/A
Authoring Institution: Colorado State Coll., Greeley.