Describes a study of Eugene, Oregon, secondary school students which was conducted to determine patterns of microcomputer usage at home and at school; microcomputer activities engaged in at home and at school and time spent on each activity; and relationship between home and school use of microcomputers. (MBR)

Specific questions addressed in this study include how time limits affect a test's construct and predictive validities, how time limits affect an examinee's time allocation and test performance, and whether the assumption about how examinees answer items is valid. Interactions involving an examinee's sex and age are studied. Two parallel forms of…