This study evaluated the efficacy of a cognitive treatment package for path
ological gambling. Sixty-six gamblers, meeting DSM-IV criteria for patholog
ical gambling, were randomly assigned to treatment or wait-list control con
ditions. Cognitive correction techniques were used first to target gamblers
' erroneous perceptions about randomness and then to address issues of rela
pse prevention. The dependent measures used were the South Oaks Gambling Sc
reen, the number of DSM-IV criteria for pathological gambling met by partic
ipants, as well as gamblers' perception of control, frequency of gambling,
perceived self-efficacy, and desire to gamble. Posttest results indicated h
ighly significant changes in the treatment group on all outcome measures, a
nd analysis of data from 6- and 12-month follow-ups revealed maintenance of
therapeutic gains. Recommendations for clinical interventions are discusse
d, focusing on the cognitive correction of erroneous perceptions toward the
notion of randomness.