Table 3.

Results From Metaregressions of Several Possible Moderators With Contingency Management Outcomes up to 1 Year Following Treatment

Moderator (k)	Point estimate	95% CI	Z	p
Participant age (24)
Slope	0.00	[−0.03, 0.03]	0.06	.95
Intercept	0.16	[−1.02, 1.34]	0.27	.78
Participant gender: Percentage female (24)
Slope	0.01	[−0.00, 0.02]	1.23	.22
Intercept	−0.14	[−0.70, 0.42]	−0.49	.63
Participant race: Percentage White (21)
Slope	−0.01	[−0.02, 0.00J	−1.11	.26
Intercept	0.48	[−0.07, 1.03]	1.70	.09
Publication year (24)
Slope	−0.04	[−0.07, −0.00]	−2.03	.04
Intercept	73.52	[2.88, 144.17]	2.04	.04
Reinforcer frequency (24)
Slope	−0.02	[−0.19, 0.14]	−0.29	.77
Intercept	0.27	[−0.20, 0.74]	1.11	.27
Reinforcer magnitude (24)
Slope	0.00	[0.00, 0.00]	1.98	.05
Intercept	0.06	[−0.19,0.30]	0.44	.66
Time of follow-up in weeks (24)
Slope	−0.01	[−0.02, 0.01]	−1.22	.22
Intercept	0.42	[0.02, 0.82]	2.08	.04
Treatment duration (24)
Slope	0.03	[0.00, 0.06]	2.05	.04
Intercept	−0.25	[−0.68,0.18]	−1.14	.25

Note. Point estimates reflect the amount of increase or decrease in the log odds ratio effect sizes. k = number of studies; CI = confidence interval.