[Retracted] Exploring the Application of Online Teaching Platform in the PBL Teaching Mode of Film and Television Courses for Teacher Trainees

Table 14

T-test data of independent samples before and after the test of problem-solving ability of experimental class–control class.

		Class	N	Variance homogeneity test			T-test of mean equation
				Average	F	Sig	T	df	Sig (bilateral)
Problem-solving ability	Pretest	Control class	48	3.5365	0.076	0.783	1.047	96	0.298
		Experimental class	50	3.4400			1.045	93.472	0.299
	Posttest	Control class	48	3.6917	4.343	0.040	−2.858	96	0.005
		Experimental class	50	4.0360			−2.839	84.690	0.006