Table 2 Patient evaluation of the therapy groups and study procedures

General assessment of the treatment

General satisfaction

3.61 (0.78)

4.06 (0.75)

Match with expectancies

3.22 (0.90)

3.35 (0.78)

Recommendation of the module to others

3.96 (1.02)

4.47 (0.72)

Session length (1 = too short, 5 = too long)

2.96 (0.64)

3.13 (0.50)

Number of sessions

2.64 (0.79)

2.88 (0.49)

Balance between exercises and discussion (1 = too many exercises, 5 = too much discussion)

3.04 (0.47)

3.41 (0.51)

Homework content

3.70 (0.82)

3.71 (0.69)

Homework quantity

Hand-outs used during sessions

3.57 (0.66)

4.12 (0.60)

Study procedure

Patient information letter

4.00 (0.98)

4.18 (1.07)

Randomization procedure

3.55 (0.91)

2.94 (0.77)

Questionnaires – emotional strain (5 = not at all)

3.74 (1.10)

3.82 (0.95)

Questionnaires – time (1 = a lot of time, 5 = not much time)

2.61 (0.94)

2.71 (0.99)

Effectiveness of and relationship to the therapists and group members

Therapists—clarity

4.87 (0.34)

4.76 (0.44)

Therapists—persuasion

4.65 (0.65)

4.76 (0.44)

Therapists—credibility

4.57 (0.59)

4.82 (0.39)

Therapists – feeling heard

4.74 (0.62)

4.82 (0.39)

Group—collaboration

4.26 (0.54)

4.53 (0.62)

Group—atmosphere

4.39 (0.58)

4.24 (0.75)

Respectful treatment

4.87 (0.34)

5.00 (0.00)

Positive perception of change

Body image

2.91 (1.20)

2.12 (1.32)

Eating disorder

2.70 (1.46)

2.65 (1.37)

Self-esteem

3.09 (1.12)

2.53 (1.28)

Enduring changes

3.13 (1.22)

2.82 (1.47)

Acceptability

Useful

3.96 (1.11)

4.35 (1.06)

Personal fit

3.83 (1.37)

4.12 (1.11)

Strain (1 = a lot, 5 = not at all)

3.04 (0.93)

3.41 (1.00)

Discomfort

3.48 (0.85)

3.59 (1.00)

Negative effects (1 = a lot, 5 = not at all)

4.14 (0.97)

4.12 (0.93)