This technical report is concerned with the evaluation of three Computer-Assisted Instruction (CAI) Programs - The Drill-and practice Program in Elementary School Mathematics, The Brentwood Tutorial Mathematics Program, and the Russian Program. Among the results reported were (1) the drill-and-practice mathematics program used in Mississippi and California showed positive results for grades 1 through 6 in Mississippi and for some other grades in California in comparison with matched control groups, (2) the tutorial mathematics program used with first and second graders in a deprived area in California had a statistically significant positive effect for slow learners in grade 1 in comparison with traditional classroom instruction, and (3) in the Russian course for college students, CAI students performed significantly better than control students on final examinations for two of the three academic quarters for the first-year course and on a quarter examination used in the second-year course. (RP)