Little is known about the extent to which admission to alcohol and oth
er drug treatment programs is perceived as a coercive imposition. This
is because coercion is typically inferred from referral source rather
than measured. In this study, clients (N = 300) entering substance ab
use treatment were assessed on structural variables (sociodemographic
background, criminal history, current legal status, referral source),
psychological variables (personal beliefs about substance abuse, perce
ived interpersonal pressures), alcohol/drug use, and perceived coercio
n. Mandated treatment status predicted perceived coercion; however, ma
ny mandated clients did not, and many self-referrals did, report being
coerced into treatment. Psychological factors accounted for additiona
l variance in perceived coercion, controlling for referral source. Sub
stance dependence did not add to the predictability of perceived coerc
ion beyond structural and psychological variables. These findings are
inconsistent with the notion that coercion can be inferred from referr
al source. Instead, results support self-determination theory (Deci &
Ryan, 1985), which proposes that multiple social and psychological eve
nts promote perceived coercion by undermining personal autonomy. (C) 1
998 Elsevier Science Ltd.