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. Author manuscript; available in PMC: 2024 Jan 30.
Published in final edited form as: Behav Cogn Psychother. 2023 Oct 19;52(1):33–48. doi: 10.1017/S1352465823000462

Table 5. Comparisons between pre-treatment and follow up measures of anxiety and depression.

Measures Pre-treatment Final follow up t df p (two-sided) Cohen’s d
Mean SD Mean SD
Depression (PHQ-9) 8.50 4.31 4.50 2.50 3.40 15 .004 0.85
Anxiety (GAD-7) 9.63 4.32 5.63 3.10 4.59 15 <.001 1.15

Note.

PHQ-9 = Patient Health Questionnaire-9, measuring symptoms of depression in the past two weeks GAD-7 = Generalised Anxiety Questionnaire-7, measuring symptoms of anxiety in the past two weeks

A Bonferroni adjustment was applied for multiple comparisons and both results were significant at p<.008