Table 2.

Other symptom changes in pre- to post-treatment mean scores on treatment effectiveness measures for eating and substance use disorders.

Pre-treatment				Post-treatment
Variable	N	Mean	S.D.	Mean	S.D.	t	df	p
Eating Disorder Examination
Global Score Low: 0.127 Average: 0.932 Elevated:1.737 Severe: 2.452	16	3.74	0.98	1.52	1.04	5.96	15	0.000
Eating Disorder Inventory
Bulimia Low: <1.8 Average: 1.8–4.8 Elevated: 4.9–7.9 Severe: >8.0	18	9.11	5.12	2.89	4.70	4.33	17	0.000
Drive for Thinness Low: <5.0 Average: 5.0–10.2 Elevated: 10.3–15.5 Severe: >15.6	18	12.11	5.75	6.50	5.24	3.40	17	0.002
Interceptive Awareness Low: <2.3 Average: 2.3–5.7 Elevated: 5.8–9.2 Severe: 9.3	18	11.56	5.85	4.72	6.94	3.19	17	0.003
Alcohol Severity Index Composite Score:
Alcohol	15	0.36	0.32	0.20	0.26	2.67	14	0.009
Drug	14	0.15	0.16	0.08	0.08	1.42	13	0.002
Drug-Taking Confidence Questionnaire:
Alcohol	11	56.59	29.10	72.95	27.29	−1.59	10	0.072
Drug	20	12.50	21.74	42.34	48.35	−3.43	19	0.001