ERIC Number: ED155180
Record Type: RIE
Publication Date: 1977-Dec
Reference Count: 0
Estimation of the Operating Characteristics of Item Response Categories I: Introduction to the Two-Parameter Beta Method. Research Report 77-1.
A method of estimating the operating characteristics of a new test item added to an established test without assuming a prior model has been proposed by the author. In this paper, the author extends this logic by proposing a different hypothesized distribution of the resulting estimate. The former method used a normal approximation; the present one uses a beta distribution. Both methods fall under the general principles of latent trait test theory. (JKS)
Publication Type: Reports - Research
Education Level: N/A
Sponsor: Office of Naval Research, Arlington, VA. Personnel and Training Research Programs Office.
Authoring Institution: Tennessee Univ., Knoxville. Dept. of Psychology.
Note: Tables in appendixes may reproduce poorly due to small type