A popular freshman social science survey course, Introductory Psychology, serves to illustrate one application of Universal Instructional Design (UID) principles. A seven-step lesson planning process is used to teach a unit on personality theories. Multiple modes of representation allow students multiple means of expression, and provide students with different ways to become engaged. Included in the lesson plan is a survey of nine sample adaptations or instructional design decisions to consider. In addition, learner-centered assessment strategies are discussed with a focus on adapting the multiple-choice exam with UID principles. The author concludes that Universal Instructional Design principles prove to be a powerful pathway for affirming student diversity, promoting a genuine sense of community, and improving student retention, achievement, and motivation.