People can use a variety of different strategies to perform tasks and these strategies all have two characteristics in common. First, they can be evaluated in comparison with either an absolute or a relative standard. Second, they can be used at varying levels of consistency. In the present article, the authors develop a general theory of task…

Notes that significantly different results frequently exist between tests that purport to measure the same skill when the same child is tested on both instruments. Considers discrepancies related to examinee, examiner, examinee-examiner interactions, environment, and psychometric characteristics of the tests employed. Cites 10 major psychometric…

This report is the third in a series of research projects concerning abilities and performance processes, particularly in school mathematics. A theoretical scrutiny of traditional psychometric testing, cognitive processes, their interrelationships, and an empirical application of the theoretical considerations on the level of junior secondary…

The scientific concept of intelligence has been heavily influenced by the technology of measurement. The variables which can be measured have been made the operational definition of intelligence. This approach differs from a deductive approach, in which a theory of cognition in general is used to derive the sorts of measurements that must be taken…