. Author manuscript; available in PMC: 2016 May 1.

Published in final edited form as: Exp Clin Psychopharmacol. 2016 Feb;24(1):30–37. doi: 10.1037/pha0000059

Table A2.

Top 10 models for covariates based on BIC. Models with a low BIC exhibit the best statistical tradeoff between predictive ability and model complexity. The optimal model by this criterion includes years of education and protocol.

Model	Age	Education	Gender	Income	Marital status	Other substances uses	Protocols number	Treatment seeking status	Employments status	Race	Delay discounting version	BIC
1	No	Yes	No	No	No	No	No	Yes	No	No	Yes	1088.32
2	No	Yes	Yes	No	No	No	No	Yes	No	No	Yes	1090.11
3	Yes	Yes	No	No	No	No	No	Yes	No	No	Yes	1090.74
4	No	Yes	No	Yes	No	No	No	Yes	No	No	Yes	1091.51
5	No	Yes	Yes	Yes	No	No	No	Yes	No	No	Yes	1092.93
6	No	Yes	No	No	No	No	No	Yes	Yes	No	Yes	1093.14
7	Yes	Yes	No	Yes	No	No	No	Yes	No	No	Yes	1093.42
8	Yes	Yes	Yes	No	No	No	No	Yes	No	No	Yes	1093.71
9	No	Yes	No	No	No	Yes	No	Yes	No	No	Yes	1094.09
10	Yes	Yes	No	Yes	No	No	No	No	No	No	Yes	1094.55