Table 4

Descriptive statistics and within-group analysis of each variable.

	Pre		Post		p	Cliff’s delta \|δ\|	Effect Size Interpretation
	M	SD	M	SD	p	Cliff’s delta \|δ\|	Effect Size Interpretation
IMtK	5.52	1.08	6.70	0.33	.008*	.68	Large
IMtES	5.98	1.27	6.80	0.40	.017*	.40	Medium
IMtA	5.89	1.23	6.23	1.03	.149	.17	Small
Identified	5.34	1.33	5.66	0.85	.496	.09	Negligible
Introjected	5.20	0.91	4.09	0.82	.005*	-.66	Large
External	5.36	1.32	3.50	1.19	.003*	-.72	Large
Amotivation	3.50	1.15	2.66	0.32	.052	-.52	Large
Note. IMtK: intrinsic motivation to know; IMtES: intrinsic motivation to experience stimulation; IMtA: intrinsic motivation to accomplish; * = significant difference (p < .05)