Fostering Achievement of Low-, Average-, and High-Achievers Students in Biology through Structured Cooperative Learning (STAD Method)

Table 3

ANCOVA of low-achiever students.

Tests of between-subjects effects
Source	Type III sum of squares	df	Mean square	F	Sig.
Corrected model	2189.121^a	2	1094.560	49.754	0.001
Intercept	277.245	1	277.245	12.602	0.001
Pretotal	1588.232	1	1588.232	72.194	0.001
Group	706.501	1	706.501	32.115	0.001
Error	329.991	15	21.999
Total	39330.000	18
Corrected total	2519.111	17

^aR squared = .869 (adjusted R squared = .852).