Research on the Influence of Virtual Reality on the Learning Effect of Technical Skills of Science and Engineering College Students: Meta-Analysis Based on 32 Empirical Studies

Table 6

Effects of different experimental cycles.

Experimental cycle	Number of effects	Effect value	95% confidence interval		Two-tailed test
			Lower limit	Upper limit	value	value
Merger effect	71	0.307	0.258	0.356	12.364	≤0.001
0-20 min	23	0.224	0.145	0.302	5.589	≤0.001
20-40 min	12	0.166	0.035	0.297	2.485	0.013
40-60 min	11	0.484	0.369	0.600	8.214	≤0.001
60 min or more	25	0.373	0.284	0.462	8.238	≤0.001