Methods
This is a cross-sectional study carried out in Iran. All undergraduate nursing and midwifery
students (n=300) participated in this study. Data were collected using a standard questionnaire
developed by Wakui including demographic information, exercise stages of change (using a
5-item, dichotomous (Yes/No) scale), exercise self efficacy (5 item using Likert scale) and exercise
decisional balance (12 item using Likert scale). Validity and reliability was checked by the panel of
experts and test retest correlation, respectively. Descriptive statistics (frequency and percentage)
and analytical tests (Correlation, independent t-test, one way ANOVA) were used for analysis.