The effects of using exploratory computerized environments in grades 1 to 8 mathematics: a meta-analysis of research

International Journal of STEM Education

Table 3 Summary of subgroups’ weighted effect sizes

Moderator and subgroups	N	ES	SE	95% CI
Moderator and subgroups	N	ES	SE	Lower	Upper
Grade level
Lower elementary: 1 through 3	3	0.61	0.03	0.54	0.67
Upper elementary: 4 to 5	12	0.41	0.07	0.27	0.54
Middle school: 6 to 8	9	0.65	0.04	0.57	0.73
Instrumentation
Problem solving	12	0.54	0.07	0.41	0.67
Explorations	12	0.62	0.03	0.54	0.69
Treatment duration
Short	8	0.47	0.14	0.11	0.74
Intermediate	9	0.63	0.09	0.45	0.81
Long	7	0.62	0.04	0.55	0.70
Content domain
Geometry	9	0.67	0.22	−0.07	0.79
Arithmetic and algebra	15	0.61	0.03	0.43	0.56
Type of instructional support
Teacher guided	8	0.75	0.08	0.59	0.92
Computer based	16	0.56	0.04	0.49	0.63