Table 2.

Percentage weight loss Cohen’s d′ for the current trial and previous randomized controlled trial (Barnes, White, Martino, & Grilo, 2014).

	Post-treatment (12 weeks) Cohen’s d′	3-month follow-up (24 weeks) Cohen’s d′
Motivational Interviewing + Nutrition Psychoeducation (current)	0.59	0.53
Barnes and colleagues, 2014
Motivational Interviewing	0.54	0.35
Nutrition Psychoeducation	0.77	0.66
Usual Care	0.07	0.01

Note. Cohen’s d′ effect size interpretation: 0.2 = small, 0.5 = medium, 0.8 = large.