 Current activity will be measured using an item modified from a recent EMA study by Dunton and colleagues 2012. Using a list of options, this item assesses the activity in which the participant was engaged immediately prior to receiving the prompt. One item from the Exercise Self-Efficacy Scale McAuley, 1993 will be used to assess womens confidence in their ability to participate in daily PA on a scale of 0 to 100 - I am able to participate in physical activity at a moderate intensity for 30 minutes today without quitting. General self-worth will be measured using one item from the general self-worth subscale of the Adult Self-Perception Profile Messer Harter, 1986. Women will choose among four statements to indicate how they feel about themselves: Which of the following statements is most true of how you feel RIGHT NOW? It is REALLY TRUE that I am dissatisfied with myself It is SORT OF TRUE that I am dissatisfied with myself It is SORT OF TRUE that I am satisfied with myself It is REALLY TRUE that I am satisfied with myself 