Table 2.

Outcome measure scores (mean (SD)) by study group at baseline, post-intervention, and 6-week follow-up^a

	Control	Intervention	Cohen's d
F-scale score
Baseline	4.0 (0.5)	3.7 (0.3)*
Post-intervention	3.9 (0.5)	3.2 (0.3)***	1.69
6-week follow-up	4.0 (0.5)	3.6 (0.4)**	1.32
BOAP scale score
Baseline	11.4 (4.0)	11.2 (4.0)
Post-intervention	11.7 (3.7)	19.9 (6.5)***	1.55
6-week follow-up	11.0 (4.0)	13.7 (6.9)	0.51
AFA ‘Dislike’ subscale score
Baseline	2.39 (1.52)	1.86 (1.43)
Post-intervention	2.15 (1.48)	1.45 (1.16)	0.52
6-week follow-up	2.54 (1.50)	1.57 (1.38)*	0.74
AFA ‘Willpower’ subscale score
Baseline	5.78 (1.57)	5.42 (1.84)
Post-intervention	5.94 (1.69)	3.88 (1.95)**	1.12
6-week follow-up	5.76 (1.56)	4.64 (1.84)*	0.65
Bad/good IAT score
Baseline	5.0 (3.25)	3.8 (4.36)
Post-intervention	2.7 (4.91)	2.7 (3.33)	0.26
Lazy/motivated IAT score
Baseline	6.7 (3.62)	4.5 (4.96)
Post-intervention	5.4 (3.89)	2.6 (4.19)*	0.69

^aSample sizes during baseline and post-intervention data collection = 22 for intervention group and 21 for control group. Sample sizes during 6-week follow-up data collection = 10 for intervention group and 10 for control group. P values represent between-group differences at baseline, post-intervention, and 6-week follow-up. Between-group differences at 6-week follow-up were analysed on an intention-to-treat basis.

^*Significant difference at p <0.05.

^**Significant difference at p <0.01.

^***Significant difference at p <0.001.