Table 1.

Overall Mean Frequency of Positive and Negative Emotion Expression (per 20 minutes)

Behavior	M	(SD)	Range
Positive facial emotional expression	5.89	(5.88)	0.00 – 38.50
Positive verbal emotional expression	1.91	(3.00)	0.00 – 22.71
Positive body/posture emotional expression	5.72	(5.26)	0.00 – 28.80
Sum of PEE items	13.51	(12.49)	0.00 – 90.01
Negative facial emotional expression	0.44	(0.86)	0.00 – 9.75
Negative verbal emotional expression	0.13	(0.63)	0.00 – 15.88
Negative body/posture emotional expression	1.00	(1.71)	0.00 – 35.00
Sum of NEE items	1.57	(2.26)	0.00 – 50.88

Note. PEE = positive emotional expression; NEE = negative emotional expression.