Design of the Mixed Oral English Teaching Method Based on the Hierarchical Aggregation Algorithm

Table 1

Pretest and posttest t-test of oral English in control and experimental classes.

Test dimension	Class	Sample size	Average	Standard deviation	t-value	Significance (double test)
Total pretest score	Control	53	58.72	5.87	0.632	0.530
	Experimental	54	58.68	5.56
Total posttest score	Control	53	72.87	6.28	3.027	0.003
	Experimental	54	78.01	5.22
Pretest language content	Control	53	22.36	2.05	0.404	0.687
	Experimental	54	22.70	2.26
Posttest language content	Control	53	30.53	2.49	0.703	0.686
	Experimental	54	29.97	3.03
Pretest language accuracy	Control	53	16.12	1.41	1.259	0.213
	Experimental	54	16.70	1.53
Posttest language accuracy	Control	53	22.26	2.82	3.753	0.026
	Experimental	54	25.45	1.50
Pretest phonological intonation	Control	53	16.03	0.64	0.119	0.905
	Experimental	54	16.09	0.58
Posttest pronunciation and intonation	Control	53	22.56	2.77	3.282	0.032
	Experimental	54	24.41	1.38