1. Effectiveness of computer-based education in secondary schools;Bangert-Drowns;Journal of Computer-Based Instruction,1985
2. Basic Word Vocabulary Test,1975
3. Human characteristics and school learning;Bloom,1976
4. New directions in educational research — alterable variables;Bloom;Phi Delta Kappan,1980
5. The 2 sigma problem: the search for methods of group instruction as effective as one-to-one tutoring;Bloom;Educational Researcher,1984