In this study, 230 licensed social workers participated in a cross-sectional survey to examine participants' self-perceived change in knowledge, attitude, and behavior (KAB) following formal and informal continuing professional education (CPE). Self-perceived change scores were significantly higher for informal than formal CPE. Higher motivational orientation toward professional knowledge was found to be a stronger predictor of self-perceived change in KAB following participation in formal and informal CPE. In addition, following formal CPE, greater age and increased expectation to apply learning predicted greater perceived change in KAB. Implications for social work education are discussed. (Contains 1 figure and 4 tables.)