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. 2018 Nov 2;15:10–17. doi: 10.1016/j.invent.2018.10.001

Table 2.

Knowledge and depression scores of participants.

Instrument N Treatment
Control
Between-group pre- to post
Within-group correlations with BDI change score
M (SD) N M (SD) F (df), effect size, Cohen's d (95% CI) Pearson's r
Knowledge test (raw scores)
 Pre 30 13.20 (2.59) 35 13.03 (1.99) 5.09 (1,56) −0.29
 Post 28 14.39 (2.28) 35 13.43 (1.82) 0.67 [0.14, 1.20]*
 Change scorea 26 1.42 (1.88) −0.03
Knowledge test (weighted scores)
 Pre 30 17.27 (4.73) 35 16.54 (3.62) 13.44 (1,56) −0.38*
 Post 28 21.50 (6.14) 35 17.66 (3.68) 1.25 [0.67, 1.79]*** −0.14
 Change scorea 26 4.73 (4.07)
BDI-II
 Pre 33 33.1 (9.4) 37 32.3 (10.2) 6.18 (1,67)
 Post 30 19.9 (7.2) 36 25.2 (7.8) 0.71 [0.22, 1.19]*
 Change scorea 30 12.8 (11.2)

Model derived means differences (SD) *significant p < .05, **significant p < .01, ***significant p < .001. Analysis adjusted for baseline score and based on Complete Cases analysis.

BDI-II = Beck Depression Inventory-II.

a

Change value relating to the difference between pre- and post-measurement.