International Journal of STEM Education

Table 1 Descriptive statistics, Cronbach alpha and correlation matrix for the study variables

From: Relations between perceived teacher’s autonomy support, cognitive appraisals and boredom in physics learning among lower secondary school students

Variables	M (SD)	Range	1	2	3	4
1. Perceived TAS	76.65 (17.76)	15–105	.90
2. Self-efficacy	14.85 (4.14)	0–20	.47**	.78
3. Task value	33.63 (7.50)	6–42	.33**	.46**	.78
4. Boredom	24.64 (10.54)	11–55	− .47**	− .39**	− .36**	.90

TAS teacher autonomy support. Missing values excluded pairwise. **p < .01. Corresponding Cronbach alphas for each scale in bold

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