Table 1.

Independent Sample t test of Mean Differences Between Groups

	Harvard Sample			Inner City Cohort			t score	p
	M	SD	N	M	SD	N
Harsh parenting	3.13	1.09	255	3.13	1.28	453	–0.01	.99
Lower social class	2.00	0.90	265	5.21	0.66	454	–56.21	.00
Generativity	0.49	0.50	243	0.31	0.46	393	4.49	.00
Later life health	4.47	1.82	260	3.53	1.92	406	6.34	.00
Adjustment to aging	3.57	1.41	227	3.28	1.32	270	2.39	.02