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Table 2 Pre-post measures and within-group effect sizes in the two treatment settings; n = 400 (BID) n = 193 (inpatients)

From: Effectiveness of inpatient versus outpatient complex treatment programs in depressive disorders: a quasi-experimental study under naturalistic conditions

 GroupTime 1
M (SD)
Time 2
M (SD)
T-testsCohen’s d1
Severity of self-rated Depression (BDI)BID29.8 (9.5)17.4 (10.5)t (399) = 25.7; p < .001−1.36
Inpatient30.3 (11.2)20.2 (12.0)t (192) = 18.4; p < .001−1.36
Severity of depression assessed by the therapist (MADRS)BID26.6 (6.4)13.9 (7.5)t (399) = 32.5; p < .001−1.76
Inpatient27.0 (6.3)15.5 (4.7)t (192) = 23.2; p < .001− 1.49
Global Functioning (GAF)BID52.5 (8.6)64.8 (11.5)t (399) = −21.1; p < .0011.25
Inpatient43.9 (8.3)58.8 (7.7)t (192) = −20.9; p < .0011.45
Global burden of psychopathology (SCL-90-R GSI)BID73.3 (8.0)62.7 (12.0)t (399) = 20.2; p < .001−1.33
Inpatient73.4 (8.4)66.2 (11.1)t (192) = 12.5; p < .001− 1.10
  1. Legend: 1d ≥ 0.2 small effect, d ≥ 0.5 moderate effect, d ≥ 0.8 large effect (marked)