Table 1. Variance Components at the Teacher and Class Period Level (Study 1).

Emotion	Variance
	Coefficient	SE	Proportion (%)
Enjoyment
Level 2: Teacher (σ2 0u)	.11**	.02	17
Level 1: Class Period (σ2 e)	.53**	.03	83
Anger
Level 2: Teacher (σ2 0u)	.13**	.02	20
Level 1: Class Period (σ2 e)	.53**	.03	80
Anxiety
Level 2: Teacher (σ2 0u)	.10**	.02	26
Level 1: Class Period (σ2 e)	.29**	.03	74

Note. N = 2,646; 2,668; and 2,649 for enjoyment, anger, and anxiety, respectively, on the class period level, due to missing values. N = 135 for all emotions on the teacher level.

** p < .01.