Table 3.

Predictor variables of sleep phase delay. Univariate general linear model with sleep phase delay (compound measure, see text)

Source of variation	Df	RMS	F	Sig	Partial eta-squared
Corrected model	11	7.739	8.718	<0.001	0.125
Constant	1	0.102	0.115	0.734	0.000
Age	1	0.002	0.003	0.958	0.000
MA	1	12.441	14.015	<0.001	0.021
EV	1	10.911	12.292	<0.001	0.018
DI	1	1.219	1.373	0.242	0.002
Sex	1	0.085	0.095	0.758	0.000
Profession	1	0.126	0.141	0.707	0.000
No. children	1	6.487	7.307	0.007	0.011
Sex * profession	1	0.001	0.001	0.970	0.000
Sex * no. children	1	1.450	1.634	0.202	0.002
Profession * no. children	1	0.049	0.055	0.814	0.000
Sex * profession * no. children	1	0.388	0.437	0.509	0.001

Df degrees of freedom; RMS root mean square; MA morning affect; EV eveningness; DI distinctness