This article describes the development, validity and reliability of the Parent Empowerment and Efficacy Measure (PEEM). Development was guided by theory and by challenges faced by Pathways to Prevention family support staff who required a short, practical and reliable measure of parent empowerment. The measure's psychometric properties were tested using data from 866 parents of children aged 5 to 12, living in high to low socioeconomic status areas. Principal factor analysis revealed a strong general dimension with high internal consistency (a = 0.92) that correlated at 0.60 or more with three validation measures, as well as the existence of two hypothesized sub-factors (correlated at 0.78): efficacy to parent and efficacy to connect, each with internal consistencies of 0.85+. Test-retest reliability (n = 200) was 0.84. PEEM exhibits excellent convergent and concurrent validity and is a reliable tool for use in planning services, monitoring participant progress, and evaluating program effectiveness.