Table 3.

Fixed effect parameter estimation, including pubertal status—positive score

Predictor variable	Estimate	SE	DF	p value
Positive
Intercept	− 34.53	84.42	460	0.68
Level of social interaction	0.03	0.05	460	0.56
Quality of social interaction	0.13	0.02	460	< 0.01*
Enjoyment of current activity	0.04	0.01	460	< 0.01*
Non-verbal IQ	− 2.74	6.07	7	0.66
IQ	0.91	2.07	7	0.67
Genetic sibling with ASD	0.35	0.93	7	0.72
Pubertal status—early stages	− 0.25	1.09	7	0.83
Pubertal status—late stages	− 1.58	1.16	7	0.22
Level of social interaction × Pub. status—early	0.53	0.11	460	< 0.01*
Level of social interaction × Pub. status—late	0.07	0.11	460	0.49
Quality of social interaction × Pub. status—early	− 0.04	0.03	460	0.16
Quality of social interaction × Pub. status—late	0.09	0.03	460	< 0.01*
Enjoyment of current activity × Pub. status—early	− 0.04	0.03	460	0.17
Enjoyment of current activity × Pub. status—late	− 0.02	0.03	460	0.48
Negative
Intercept	− 25.68	32.05	460	0.42
Level of social interaction	0.06	0.03	460	0.05*
Quality of social interaction	− 0.03	0.01	460	< 0.01*
Enjoyment of current activity	− 0.01	0.01	460	0.15
Duration	0	0	460	0.29
Genetic sibling with ASD	0.32	0.35	7	0.4
Pubertal status—early stages	0.48	0.43	7	0.31
Pubertal status—late stages	0.63	0.46	7	0.21
Number of medications	− 0.19	0.32	7	0.57
Degree of sadness over the past two weeks	− 0.08	0.36	7	0.83
Level of Social Interaction × Pub. Status—Early	− 0.15	0.06	460	0.02*
Level of social interaction × Pub. status—late	− 0.1	0.06	460	0.11
Quality of social interaction × Pub. status—late	− 0.07	0.02	460	< 0.01*
Enjoyment of current activity × Pub. status—early	0.03	0.01	460	0.03*
Enjoyment of current activity × Pub. status—late	0.04	0.02	460	0.06

For brevity, only 14 variables for positive momentary affect and negative momentary affect (total of 28 variables) are presented. These variables were chosen to be presented because they explained the most variance in depressive symptomatology

Asterisk indicates a p-value significant at the 0.05 level