TABLE 1.

Coefficients from linear regression models predicting happiness, Model 1 (N=201,988)

Variable	Coefficient	SE	t	p value	95% CI
Number of children (none)
One	0.041	0.005	7.95	0.000	(0.031 0.051)
Two	0.062	0.005	13.09	0.000	(0.053 0.072)
Three	0.060	0.005	10.80	0.000	(0.049 0.071)
Four or more	0.002	0.006	0.30	0.766	(−0.009 0.013)
Sex (male)
Female	0.007	0.003	2.47	0.014	(0.001 0.014)
Age (15–19)
Ages 20–39	−0.094	0.008	−11.66	0.000	(−0.110 −0.079)
Age 40+	−0.192	0.009	−22.25	0.000	(−0.209 −0.175)

NOTE: Coefficients for country and year dummy variables not shown. SE = standard error; CI = confidence interval. R squared = 0.12.

Happiness is measured on a linear scale from 1 (not at all happy) to 4 (very happy).

SOURCE: World Values Surveys 1981–2005.