Table 2.

Well-being regression equations for the total sample (N = 508) with sample by age interactions and without sample by age interactions

With or without sample	b	SE	t	P
With sample
Intercept	55.764	1.400	39.835	<0.001
Sample A	0.921	2.180	0.423	0.673
Sample B	−5.132	1.732	−2.963	0.003
Male	1.301	0.421	3.091	0.002
Age	−0.491	0.132	−3.714	<0.001
Age2	0.008	0.003	3.065	0.002
Sample A × Age	−0.232	0.205	−1.134	0.258
Sample B × Age	0.118	0.169	0.696	0.487
Sample A × Age2	0.004	0.004	1.015	0.311
Sample B × Age2	−0.001	0.004	−0.395	0.693
Without sample
Intercept	55.215	1.316	41.962	<0.001
Sample A	−1.502	0.598	−2.510	0.012
Sample B	−3.514	0.582	−6.037	<0.001
Male	1.260	0.418	3.017	0.003
Age	−0.447	0.125	−3.574	<0.001
Age2	0.007	0.003	2.920	0.004

The b coefficients for “Male,” “Sample A,” and “Sample B” indicate the deviation of well-being of these groups from the unweighted grand mean of well-being. The b coefficients for interaction terms indicate the deviation of Age and Age² effects for sample A and sample B from the unweighted grand mean of the Age and Age² effects.