ERIC Number: ED266186
Record Type: Non-Journal
Publication Date: 1984
Reference Count: N/A
A Technical Description of the Procedures Used in Calculating School-Level Scaled Scores for the "Survey of Basic Skills: Grade 6."
Mislevy, Robert J.; Bock, R. Darrell
New legislation in 1972 shifted the emphasis of the California Assessment Program (CAP) from traditional every pupil achievement testing to a more efficient multiple-matrix testing design, under which a broad spectrum of skills could be surveyed without undue expenditure of educational resources. Scale score reporting was introduced to the grade 6 assessment in 1981-82. The purpose of the present report is to document activities undertaken in this endeavor. After a brief review of the fundamentals of CAP measurement models, the following topics are considered: (1) structure of the assessment instrument and the delineation of skill areas; (2) item calibration procedures and results; (3) scoring procedures for a single school in a single skill element, then for aggregations of schools and/or skill elements; (4) method of approximating results for demographic subgroups within schools; and (5) equating of results from the prior grade 6 surveys to the new score scale. Appendices include (1) Calibration of Skill Element "Classification of Numbers": One- and Two-Parameter Logistic Models; and (2) 1981-82 Grade 6 Item Parameter Estimates. (LMO)
Descriptors: Achievement Tests, Basic Skills, Equated Scores, Grade 6, Intermediate Grades, Item Analysis, Mathematical Models, Maximum Likelihood Statistics, Minimum Competency Testing, Scaling, Scoring
California State Department of Education, P.O. Box 271, Sacramento, CA 95802-0271 ($3.75).
Publication Type: Reports - Research; Numerical/Quantitative Data
Education Level: N/A
Authoring Institution: California State Dept. of Education, Sacramento.