The purpose of this study was to determine the effect of The 4MAT System on
the achievement performance of middle school students. Using seventh grade
life science classes in a suburban St. Louis County middle school, the effect of
McCarthy’s 4MAT System was studied. Comparisons of pre and post achievement
scores on a district criterion-reference test indicated improvement in science
achievement for all groups. Results of these comparisons also indicate an
increase in positive student comments and greater elaboration of projects.