A Comparative Study of Item Exposure Control Methods in Computerized Adaptive Testing |
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Contents
The Purpose of the Present Research | 6 |
Methods for Data Analyses | 13 |
Summary | 29 |
Copyright | |
1 other sections not shown
Common terms and phrases
ability estimate ability points average exposure rates CAT design conditional multinomial procedure conditional observed maximums control item exposure CSEMs Davey & Parshall Davey and Parshall descriptive statistics desired exposure rate desired maximum exposure desired rate developing the exposure estimating examinees examinee populations exposure control algorithms exposure control methods exposure control parameters exposure control strategies extreme ability levels Hetter procedure item exposure control item exposure rates item parameters item security item selection procedure large pool Lewis conditional method Lewis conditional multinomial Lewis conditional procedure Lewis conditional strategies maximum exposure rates maximum observed exposure mean overlap rates measurement precision multinomial distribution observed exposure rates observed maximum exposure overall test-retest mean overlap percentages Parshall method peer-to-peer overlap rates Pool with r=0.2 sampling errors SEMs small pool Stocking & Lewis Stocking and Lewis Sympson & Hetter Sympson and Hetter test overlap rates test-retest mean overlap test-retest overlap rates unconditional values various exposure control
Bibliographic information
| Title | A Comparative Study of Item Exposure Control Methods in Computerized Adaptive Testing Issue 98, Part 3 of ACT research report series |
| Authors | Shun-Wen Chang, Bor-Yuan Twu |
| Publisher | ACT, Incorporated, 1998 |
| Length | 46 pages |
| Export Citation | BiBTeX EndNote RefMan |