Pm. Maudegriffin et al., SUPERIOR EFFICACY OF COGNITIVE-BEHAVIORAL THERAPY FOR URBAN CRACK COCAINE ABUSERS - MAIN AND MATCHING EFFECTS, Journal of consulting and clinical psychology, 66(5), 1998, pp. 832-837
This study evaluated the efficacy of cognitive-behavioral therapy (CBT
) and 12-step facilitation (12SF) in treating cocaine abuse. Participa
nts (N = 128) were randomly assigned to treatment conditions and asses
sed at baseline and at Weeks 4, 8, 12, and 26. Treatment lasted for 12
weeks. It was hypothesized that participants treated with CBT would b
e significantly more likely to achieve abstinence from cocaine than pa
rticipants treated with 12SF A series of patient-treatment matching hy
potheses was also proposed. Across 2 different outcome variables, it w
as found that participants in CBT were significantly more likely to ac
hieve abstinence than participants in 12SF In addition, some support f
or matching hypotheses was found, suggesting that both psychotherapies
may be differentially effective for identified subgroups of persons t
hat abuse cocaine.