Table 1.

Random intercepts model results predicting change in pre-exposure SUDS over time (i.e., between-session habituation) and change in SUDS difference over time (i.e., within-session habituation)

	B (95% CI)	SE	t	p
Pre-exposure SUDS
Intercept	1.63 (1.87, 2.80)	2.88	0.57	.57
Day	−0.01 (−0.03, −0.001)	0.01	−2.18	.03
%MBMI group-mean centered	−0.09 (−0.15, −0.03)	0.03	−2.88	.004
%MBMI group mean	0.05 (−0.01 0.11)	0.03	1.72	.09
SUDS difference
Intercept	0.82 (−0.84, 2.48)	0.85	0.97	.34
Day	−0.005 (−0.01, 0.002)	0.004	−1.44	.15
%MBMI group-mean centered	0.02 (−0.01, 0.06)	0.02	1.33	.19
%MBMI group mean	−0.01 (−0.02, 0.01)	0.01	−0.79	.43

Day = centered at 0, indicating day of intake; %MBMI = percent median body mass index; %MBMI group-mean centered = group-mean (i.e., person-mean) centered %MBMI (level 1 variable); %MBMI group mean = group (i.e., person) %MBMI mean used to compute group-mean centered %MBMI (level 2 variable)