Table 3.

Positive peer interaction on social media vs. in person and sustained positive affect and emotional reactivity

	Sustained Negative Affect			Negative Emotional Reactivity
Predictors	Estimates	CI	p	Estimates	CI	p
(Intercept)	51.02	45.09 – 56.95	<0.001	65.72	59.20 – 72.24	<0.001
Pos Peer Int Type (SM)	−3.45	−5.84 – −1.05	0.003	−2.84	−5.12 – −0.56	0.02
High Risk Status (1)	1.22	−6.23 – 8.67	0.75	0.06	−8.23 – 8.36	0.99
Pos Peer Int Mean (SM)	−0.15	−0.32 – 0.03	0.10	−0.10	−0.30 – 0.10	0.30
Anxiety Symptoms	0.09	−0.23 – 0.40	0.58	0.16	−0.19 – 0.51	0.36
Pos Event Recency	−1.17	−1.46 – −0.89	<0.001	−0.32	−0.55 – −0.09	0.01
Weekend (1)	2.39	0.87 – 3.92	0.002	1.12	−0.27 – 2.52	0.12
Prior PA	0.22	0.18 – 0.26	<0.001
Prior PA Reactivity				0.11	0.08 – 0.14	<0.001
Random Effects
σ2 (Residual)		290.70			207.89
τ00 (Intercept)		312.28			354.80
τ11 (Random Slope)		32.71			46.49

Note. Significant effects are bolded. Pos = Positive; Int = Interaction; SM = Social Media; Weekend (1) = Saturday/Sunday; PA = Positive Affect. Risk status is 0 = low risk; 1 = high risk. Positive Affect represents sustained positive affect, whereas positive emotional reactivity reflects positive emotional responses during the best peer interaction on EMA. Degrees of freedom are 105 for between-person (level 2) variables and 2246 for within-person/repeated measures (level 1) variables