ERIC Number: ED213731
Record Type: RIE
Publication Date: 1978-Jun
Reference Count: 0
An Alternative Interpretation of Three Stability Models. Measurement and Methodology, Work Unit 2: Technical Adequacy of Tests.
Wilcox, Rand R.
Two fundamental problems in mental test theory are to estimate true score and to estimate the amount of error when testing an examinee. In this report, three probability models which characterize a single test item in terms of a population of examinees are described. How these models may be modified to characterize a single examinee in terms of an item domain is explained. A numerical illustration is given which shows how the modified models might be used to adjust observed scores when comparing examinees. (Author/AL)
Publication Type: Reports - Research; Reports - Evaluative
Education Level: N/A
Sponsor: National Inst. of Education (DHEW), Washington, DC.
Authoring Institution: California Univ., Los Angeles. Center for the Study of Evaluation.