The use of microworlds (MWs), or complex dynamic systems, in educational testing and personnel selection is hampered by systematic measurement errors because these new and innovative item formats are not adequately controlled for their difficulty. This empirical study introduces a way to operationalize an MW's difficulty and demonstrates the…

Describes the computer hardware and software programs developed by Anne Arundel County, Maryland to integrate the use of the computer into upper level literature classes. A study undertaken to determine whether computers in Spanish and French classes made a difference in language learning is also described. No significant differences were found.…