Assembling equivalent test forms with minimal test overlap across forms is important in ensuring test security. Chen and Lei (2009) suggested a exposure control technique to control test overlap-ordered item pooling on the fly based on the essence that test overlap rate--ordered item pooling for the first t examinees is a function of test overlap…

The automated assembly of alternate test forms for online delivery provides an alternative to computer-administered, fixed test forms, or computerized-adaptive tests when a testing program migrates from paper/pencil testing to computer-based testing. The weighted deviations model (WDM) heuristic particularly promising for automated test assembly…

Automated test assembly is a technology for producing multiple, equivalent test forms from an item pool. An important consideration for test security in automated test assembly is the inclusion of the same items on these multiple forms. Although it is possible to use item selection as a formal constraint in assembling forms, the number of…