Instrument

Pretest

Posttest

Change score

SRM^{a}


EC17 ^{b}

62.55 (15.34)

66.93 (13.37)**

4.39 (9.25)

0.48

EAC processing ^{c}

2.83 (0.66)

2.93 (0.66)

0.10 (0.52)

0.19

EAC expression

2.76 (0.63)

2.82 (0.57)

0.06 (0.45)

0.13

BACQ Approach^{d}

3.42 (0.54)

3.54 (0.55)

0.12 (0.46)

0.25

BACQ Avoidance

3.24 (1.04)

3.10 (0.56)

0.14 (0.93)

0.15

GHQ20^{e}

22.94 (9.96)

17.55 (8.89)**

5.39 (7.15)

0.75


^{a} SRM standardised response mean = mean change in score divided by the standard deviation of the change in scores.

^{b} EC17 is scored from 0 to 100 where 100 is the best possible score.

^{c} The EAC is scored from 1 to 4 where 4 is the best possible score.

^{d} The BACQ is scored from 1 to 5 where 5 is the best possible score.

^{e} GHQ20 is scored from 0 to 60 where 0 is the best possible score.
 Asterisks denote statistical significance: *p < 0.05; **p < 0.01.