Table 2.

Fixed effects of group, experimental phase and the interaction between group and experimental phase on anxiety self-ratings of participants.

	Model including interaction term
	Estimate	SE	p
Intercept	1.37	0.30	<.001
Main effect: group
Low SA	Reference
High SA	1.16	0.43	0.006
Main effect: experimental phase
Baseline	Reference
Ten-minute FB use	−0.001	0.32	0.997
FB entry	0.78	0.34	0.021
FB scenarios	0.81	0.32	0.012
Interactions
High SA × 10-min FB Use	0.41	0.45	0.368
High SA × FB Entry	0.98	0.46	0.036
High SA × FB Scenarios	1.39	0.45	0.002

Notes. Estimate refers to the coefficient estimate. Low SA and baseline anxiety were reference groups. High SA represents the difference between the low SA and high SA groups. Ten minutes represent the difference between baseline and 10 min of typical FB use, FB entry represents the difference between baseline and after participants had made an online FB post and FB scenarios represents the difference between baseline and after participants have completed the three hypothetical FB scenarios. The interactions follow the same principle, that is, high SA × 10-min FB represents the interaction between group and the difference between baseline and 10 min of FB use. Contrast includes Bonferroni corrections. FB = Facebook, p = significance level, SA = social anxiety, SE = standard error.