“Mastery Learning Reconsidered”, 1987-06-01 (; backlinks):
Several recent reviews and meta-analyses have claimed extraordinarily positive effects of mastery learning on student achievement, and Bloom (198440yaa, 1984b) has hypothesized that mastery-based treatments will soon be able to produce “2-sigma” (ie. 2 standard deviation) increases in achievement.
This article examines the literature on achievement effects of practical applications of group-based mastery learning in elementary and secondary schools over periods of at least 4 weeks, using a review technique, “best-evidence synthesis”, which combines features of meta-analytic and traditional narrative reviews.
The review found essentially no evidence to support the effectiveness of group-based mastery learning on standardized achievement measures. On experimenter-made measures, effects were generally positive but moderate in magnitude, with little evidence that effects maintained over time.
These results are discussed in light of the coverage versus mastery dilemma posed by group-based mastery learning.
View PDF: