Discusses computerized dynamic testing with cues and items presented according to objective algorithms, elaborating on appropriate designs and psychometric models. Presents two studies involving 311 military recruits and 584 recruits that support the psychometric properties of a test measuring the susceptibility of reasoning to stressors. (SLD)

Twelve structural models of similarity were fitted to data from conventional and computer adaptive test (CAT) batteries measuring the same aptitude in a double cross-validation design. Three of the 12 models, including a multiplicative structure model, performed well, providing support for using CATs as replacements for conventional tests. (NSF)