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Table 2 Means, standard deviations and within-group effect sizes for primary and secondary outcomes at pre-, post-treatment, and 3-month follow-up

From: Efficacy of an internet-based exposure treatment for flying phobia (NO-FEAR Airlines) with and without therapist guidance: a randomized controlled trial

 

NO-FEAR Airlines totally self-applied

NO-FEAR Airlines with therapist guidance

 

Waiting list

Pre

(n = 23)

Post

(n = 17)

3FW

(n = 15)

12FW

(n = 12)

Pre vs. Post

Pre vs. 3FW

Pre vs. 12FW

Pre

(n = 23)

Post

(n = 15)

3FW

(n = 7)

12FM

(n = 8)

Pre vs. Post

Pre vs. 3FW

Pre vs. 12FW

Pre

(n = 23)

Post

(n = 23)

Pre vs. Post

d (95%CI)

d (95%CI)

d (95%CI)

d (95%CI)

d (95%CI)

d (95%CI)

d (95%CI)

FFQ-II

202.57 (33.54)

149.29 (46.35)

132.85 (46.35)

135.70 (57.74)

d = 1.53 (.94, 2.13)

d = 2.01 (1.29, 2.71)

d = 1.85 (.87, 2.83)

215.19 (29.69)

138.53 (55.53)

124.57 (67.85)

92.71 (63.81)

d = 2.49 (1.55, 3.43)

d = 2.95 (1.87, 4.02)

d = 3.67 (1.01, 6.33)

205.35 (49.64)

204.52 (48.54)

d = .02 (−.18, .30)

FFS

65.91 (6.93)

48.24 (9.80)

44.53 (11.49)

48.09 (12.07)

d = 2.46 (1.63, 3.29)

d = 2.98 (1.94, 4.02)

d = 2.39 (1.08, 3.71)

66.96 (6.94)

47.75 (17.00)

44.00 (14.93)

38.25 (13.70)

d = 2.67 (1.75, 3.59)

d = 2.88 (.79, 5.00)

d = 3.61 (1.09, 6.14)

63.96 (12.28)

65.18 (11.85)

d = −.10 (−.33, .13)

TB

 Fear

9.26 (.86)

5.29 (1.36)

5.73 (2.02)

5.67 (1.92)

d = 4.46 (3.00, 5.91)

d = 3.91 (2.38, 5.43)

d = 3.88 (1.99, 5.77)

9.26 (.86)

5.13 (2.33)

4.29 (2.93)

3.78 (3.11)

d = 4.64 (3.12, 6.16)

d = 5.03 (1.30, 8.75)

d = 5.64 (1.93, 9.35)

9.22 (1.20)

8.17 (2.41)

d = .84 (.50, 1.19)

 Avoidance

8.00 (2.43)

4.18 (2.33)

3.33 (2.82)

3.67 (3.00)

d = 1.52 (.92, 2.16)

d = 1.82 (.98, 2.65)

d = 1.66 (1.75, 2.56)

8.57 (1.62)

4.25 (3.55)

2.29 (2.98)

1.63 (2.93)

d = 2.57 (1.61, 3.54)

d = 3.37 (.57, 6.17)

d = 4.09 (1.32, 6.85)

8.04 (2.84)

8.14 (2.83)

d = −.03 (−.17, .10)

 Belief

8.74 (1.01)

5.35 (2.15)

5.13 (3.25)

5.25 (2.38)

d = 3.24 (2.14, 4.35)

d = 3.38 (1.93, 4.83)

d = 3.21 (1.54, 4.89)

8.78 (1.51)

4.88 (2.66)

3.57 (2.88)

2.25 (2.71)

d = 2.49 (1.53, 3.45)

d = 3.00 (.51, 5.49)

d = 3.84 (4.20, 6.49)

8.83 (1.61)

8.77 (1.63)

d = .04 (−.17,.24)

 Severity

7.30 (.56)

4.18 (1.51)

3.53 (1.77)

3.38 (1.69)

d = 5.38 (3.64, 7.11)

d = 6.37 (3.76, 8.97)

d = 6.51 (3.41, 9.62)

7.40 (.72)

4.19 (2.37)

2.86 (1.77)

2.17 (2.04)

d = 4.30 (2.85, 5.76)

d = 5.49 (1.43, 9.54)

d = 6.46 (2.27, 10.64)

7.26 (1.10)

7.27 (1.20)

d = −.01 (−.21, .20)

 Improvement

–

5.41 (.80)

5.67 (.90)

5.42 (.90)

–

–

–

–

5.44 (1.09)

6.14 (.90)

6.13 (1.25)

–

–

–

–

3.91 (.68)

–

  1. Means and standard deviations (SD) are represented for each primary and secondary outcome measures. Pre. Pre-treatment. Post. Post-treatment. 3FW. 3-month follow-up. 12FW. 12-month follow-up. FFQ-II. Fear of Flying questionnaire. FFS. Fear of Flying Scale. TB. Target Behavior. Belief. Degree of belief on the main irrational thought related to the target behavior. Severity. The Clinician Severity Scale. Improvement. The Patient’s Improvement Scale