Table 2.

Descriptive statistics and Pearson correlation coefficient.

	Mean	S.D.	1	2	3	4
1. Learning Achievement	0.000	1.000	1.000
2. Student–GAI Interaction	2.445	1.496	0.218**	1.000
3. Self-Efficacy	3.611	0.420	0.314**	0.137**	1.000
4. Cognitive Engagement	3.806	0.525	0.419**	0.271**	0.434**	1.000

** indicates that correlation is significant at the 0.01 level (two-tailed). The mean and standard deviation of learning achievement in the table are dimensionless, and the mean and standard deviation of the original data are 0.005 and 0.843.