ERIC Number: ED127331
Record Type: Non-Journal
Publication Date: 1975-Sep
Reference Count: N/A
Equating Reading Tests With the Rasch Model. Volume II, Technical Reference Tables.
Rentz, R. Robert; Bashaw, W. L.
This volume contains tables of item analysis results obtained by following procedures associated with the Rasch Model for those reading tests used in the Anchor Test Study. Appendix I gives the test names and their corresponding analysis code numbers. Section I (Basic Item Analyses) presents data for the item analysis of each test in a two part table. The first part, Item Summary, gives information for each item in the test. The second part, Ability Summary, shows the frequency distribution and the calibrated Rasch scores and their associated errors of measurement. At the top of each table appears the following information: number of questions, the adjusted sample size, the traditional Kuder-Richardson formula 20 reliability estimate, and the equating constant. Section II presents summaries of traditional and Rasch item parameter estimates of each test. This section shows the distribution of various item statistics and the relationship between selected statistics. Relationships are described graphically. Each table gives the test name and analysis code number, the number items, and the sample size on which the page of data is based. The first table gives the usual summary statistics. The second table, Tally by Classification, presents the frequency distributions of the item statistics. (RC)
Publication Type: Numerical/Quantitative Data
Education Level: N/A
Sponsor: National Center for Education Statistics (DHEW), Washington, DC.
Authoring Institution: Georgia Univ., Athens. Educational Research Lab.