Accession Number : ADA117378

Title :   Standardized Extended Caution Indices and Comparisons of their Rule Detection Rates.

Descriptive Note : Research rept.,

Corporate Author : ILLINOIS UNIV AT URBANA COMPUTER-BASED EDUCATION RESEARCH LAB

Personal Author(s) : Tatsuoka,Kikumi K ; Tatsuoka,Maurice M

PDF Url : ADA117378

Report Date : Mar 1982

Pagination or Media Count : 63

Abstract : Several extended caution indices (ECIs) have been introduced earlier as a link between two distinctly different approaches: One based on the standard statistics and the other, a model-based approach utilizing item response theory (IRT). Expected values and variances of some ECIs are derived and their statistical properties are compared and discussed. Then, standardized ECIs are introduced and their distributions are investigated. It turns out that the standardized ECIs fit normal distributions well. A comparison of detection rates among appropriateness measures based on IRT theory is carried out with the signed-number dataset. There is no noticeable difference in their detection rates using the 80% intervals.

Descriptors :   *Arithmetic, *Number theory, *Error analysis, *Response, Detection, Rates, Normal distribution, Intervals, Comparison, Variations, Valves, Standardization

Subject Categories : Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE