Computers and Achievement in the Elementary Schools
Journal of Educational Computing Research Volume 1, Number 4,
A metaanalysis of elementary school computer-assisted instruction (CAI) research found that lower achievers profit more from CAI; it is more effective in primary grades; boys may learn more than girls; drill and practice produces highest effect sizes; and no relationship exists between year of study publication and effect size. (MBR)
Niemiec, R.P. & Walberg, H.J. (1985). Computers and Achievement in the Elementary Schools. Journal of Educational Computing Research, 1(4), 435.