Table 7.

Growth Curve Estimates for Positive Affect Scales

Effect	General PA	Joviality	Self-Assurance	Attentiveness
Fixed Effects Estimates
Intercept	35.13 (.24)	27.78 (.24)	18.45 (.16)	14.40 (.10)
t-statistic	145.35***	117.03***	112.46***	143.01***
Slope	.33 (.06)	.17 (.05)	.11 (.04)	.18 (.03)
t-statistic	5.86***	3.19**	2.82**	7.00***
Random Effects Estimates
Variance of Intercept	17.31 (1.69)	17.41 (1.61)	8.02 (.77)	2.85 (.29)
z-statistic	10.23***	10.82***	10.44***	9.62***
Variance of Slope	.09 (.09)	.17 (.08)	.06 (.05)	.02 (.02)
z-statistic	1.04	2.12*	1.29	1.42
Covariance of Intercept, Slope	.04 (.28)	−.08 (.26)	.11 (.12)	.001 (.05)
z-statistic	.13	−.31	.91	.02
Residual Variance	14.85	12.14	6.70	2.96
−2LL	6603	6482	5759	4817

Note N=392; number of observations=1087. Standard errors are in parantheses.PA = Negative Affect; −2LL 5 −2 log likelihood, a fit index.

^*p ≤ .05.

^**p ≤ .01.

^***p ≤ .001.