The current nonsmoking prevalence rate represented a quarter of each quit attempt percentage. The same pattern of significant differences emerged when we used the more conservative pro- cedure of counting missing subjects as smokers. One-month point prevalence rates with this adjustment were as follows: PC = 1.8%, C = 4.8%, and PA = 11.9%. This 1-month posttest data clearly supports the stage of change classification of these smokers. Hypothesized predictive validity of the stage model both for cessation attempts and cessation success are strongly supported.