The Efficacy of RET Page 25

The Efficacy of Rational Emotive Therapy: A Quantitative Review of the
Outcome Research.
Table 5.
Comparison Group Therapies

RET Vs.

N_es¹

Percentage of Sample

d²

S_d

Baseline

88

37.3

1.371^a

.874

NTC³

31

13.1

.975^bc

.914

WLC

28

11.9

1.024^bc

.852

ACP

21

8.9

.803^bc

.738

CBM

13

5.5

.137^d

.347

Behavior Therapy

38

16.1

.298^d

.580

Unclassified

17

7.2

.848^bc

1.309

Overall d

236

100

.949

.933

¹Number of Effect Sizes
²Effect sizes with different superscript letters are significantly different at the p < .05 level using Duncan's multiple Range Test.

³NTC = No Treatment Control; WLC = Waiting List Control; ACP = Attentional Control/ Placebo;
CBM = Cognitive Behavior Modification

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RET Vs.	N_es¹	Percentage of Sample	d²	S_d

Baseline	88	37.3	1.371^a	.874

NTC³	31	13.1	.975^bc	.914

WLC	28	11.9	1.024^bc	.852

ACP	21	8.9	.803^bc	.738

CBM	13	5.5	.137^d	.347

Behavior Therapy	38	16.1	.298^d	.580

Unclassified	17	7.2	.848^bc	1.309

Overall d	236	100	.949	.933
¹Number of Effect Sizes ²Effect sizes with different superscript letters are significantly different at the p < .05 level using Duncan's multiple Range Test.
³NTC = No Treatment Control; WLC = Waiting List Control; ACP = Attentional Control/ Placebo; CBM = Cognitive Behavior Modification
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