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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: Behav Res Ther. 2021 Nov 10;148:103996. doi: 10.1016/j.brat.2021.103996

Table 3.

Prediction of Symptom Levels during Acute-phase Cognitive Therapy

Fixed effects df F p
Primary dataset (N = 523; Jarrett et al., 2013)
Scale   2, 18000 199.31 < .001
Time 13, 18000 406.35 < .001
Scale * time 26, 18000   14.48 < .001
Replication dataset (N = 156; Jarrett et al., 2001)
Scale   2, 5629 124.18 < .001
Time 13, 5629 160.09 < .001
Scale * time 26, 5629     2.92 < .001

Note. The scale effect involves depressed mood, low general interest/pleasure, and low sexual interest symptoms. The time effect is 14 assessments conducted approximately weekly. Random intercepts accounting for nesting of data within participants were included in each model but are not shown.