Genetic and Environmental Influences on the Allocation of Adolescent Leisure Time Activities

Table 5

Model fit statistics and variance component estimates (95% confidence intervals) for baseline (full) and best-fitting (best) model of five leisure time activity scales for males and females.

Model	−2LL	Model fit statistics						Variance component estimates
		df	Δ𝜒^2	Δdf	𝑃 value	AIC		𝑎^2	𝑐^2	𝑒^2
Physical activity
Full model	19074.67	2825	—	—	—	—	Males	0.15; (.00, .42)	0.36; (.13, .53)	0.48; (.41, .53)
							Females	0.49; (.23, .60)	0.05; (.00, .28)	0.46; (.40, .54)
Best model	19074.77	2827	0.74	2	0.69	−3.26	Males	0.07; (.00, .25)	0.43; (.27, .53)	0.50; (.43, .57)
							Females	0.54; (.47, .60)	—	0.46; (.40, .53)
Social
Full model	17737.58	2826	—	—	—	—	Males	0.50; (.41, .56)	0.00; (.00, .00)	0.51; (.44, .59)
							Females	0.49; (.23, .61)	0.06; (.00, .28)	0.45; (.39, .53)
Best model	17739.71	2829	2.14	3	0.55	−3.86	Males	0.50; (.42, .57)	—	0.50; (.43, .58)
							Females	0.55; (.49, .61)	—	0.45; (.39, .51)
Intellectual
Full model	17389.10	2826	—	—	—	—	Males	0.41; (.15, .50)	0.00; (.00, .00)	0.59; (.51, .68)
							Females	0.30; (.02, .47)	0.10; (.00, .32)	0.61; (.53, .71)
Best model	17390.91	2828	1.81	2	0.41	−2.20	Males	0.40; (.32, .49)	—	0.59; (.51, .68)
							Females	0.16; (.01, .40)	0.20; (.00, .35)	0.64; (.56, .73)
Family
Full model	15966.60	2826	—	—	—	—	Males	0.31; (.00, .40)	0.00; (.00, .30)	0.69; (.60, .79)
							Females	0.23; (.00, .49)	0.20; (.00–.42)	0.57; (.50, .66)
Best model	15969.82	2829	3.22	3	0.36	−2.78	Males	0.31; (.21, .39)	—	0.69; (.61, .79)
							Females	0.44; (.36, .50)	—	0.56; (.50, .64)
Passive
Full model	18186.62	2826	—	—	—	—	Males	0.03; (.00, .33)	0.21; (.00, .31)	0.76; (.66, .85)
							Females	0.30; (.07, .55)	0.23; (.01, .43)	0.46; (.40, .54)
Best model	18186.95	2828	0.33	2	0.85	−3.66	Males	—	0.23; (.15, .30)	0.77; (.70, .85)
							Females	0.35; (.15, .51)	0.19; (.05, .77)	0.46; (.40, .54)

Note: −2LL: −2 log-likelihood; df: degrees of freedom; AIC: Akaike information criterion; 𝑎: additive genetic; 𝑐: shared environment; 𝑒: nonshared environment.