Impact of Cooperative Learning Approaches on Students’ Academic Achievement and Laboratory Proficiency in Biology Subject in Selected Rural Schools, Ethiopia

Table 3

Multivariate analysis on the students’ laboratory proficiency by areas and teaching methods.

DV	Study areas					Method of teaching
	SS	DF	MS	F	Significance	SS	DF	MS	F	Significance
Pretest	626.7	2	313.2	3.3	0.04	796.5	2	398.3	4.2	0.02
Posttest 1	289.2	2	144.6	0.6	0.6^ns	5264.7	2	2632.3	10.4	0.00
Posttest 2	1146.2	2	573.1	2.9	0.5^ns	3992.4	2	1996.2	10.2	0.00
Posttest 3	1527.5	2	763.7	4.1	0.02	4962.7	2	2481.3	13.4	0.00

Significant at ; significant at ; ns, not significant at ; DV, dependent variable; SS, sum square; DF, degree of freedom; MS, mean square.