Ks. Crittenden et al., MEASURING READINESS AND MOTIVATION TO QUIT SMOKING AMONG WOMEN IN PUBLIC-HEALTH CLINICS - PREDICTIVE-VALIDITY, Addictive behaviors, 23(2), 1998, pp. 191-199
We conducted an independent pilot test of the internal consistency, st
ability, and predictive validity of the instrument presented by Critte
nden, Manfredi, Lacey, Warnecke, and Parsons (1994) using a two-wave p
anel of female smokers in 12 public health clinics. This instrument su
bdivides the precontemplation stage proposed by Prochaska and DiClemen
te into three more distinct stages: not contemplating quitting or cutt
ing down, not contemplating quitting, and not contemplating quitting w
ithin 6 months. Findings confirm that the instrument is useful for eva
luating movement toward quitting for populations that are largely conc
entrated in the precontemplative stage. The concurrent and predictive
validity of the elaborated stages and the reliability and stability of
smoking motivation and confidence indicate that the instrument is sen
sitive enough to track changes in readiness and motivation across the
full readiness continuum. (C) 1998 Elsevier Science Ltd.