Table 2.

Means and standard deviations on laboratory measures of temperament at 9 months for the three temperament groups.

Measures	Controls		Negatively Reactive		Positively Reactive		Significance
	N	M (SD)	n	M (SD)	n	M (SD)
Fear	53	.05 (.64)	54	−.01 (.33)	52	−.09 (.33)
Avoidance	53	.11 (1.19)	54	.16 (.82)	49	−.27 (.92)	NR> Control*; Control>PR*
Joy	74	−.09 (.92)	63	−.11 (.87)	55	.26 (1.19)	PR>Control*
Approach	60	−.11 (1.02)	55	−.08 (.77)	52	.28 (.97)	PR>NR*
Anger	62	.11 (.71)	51	−.14 (.51)	57	−.05 (.58)

Note: NR = negatively reactive; PR = positively reactive

^*The groups significantly differ, p < .05, (post-hoc least square difference test, two-tailed significance).