In the last twenty-five years, the discussion surrounding validity evidence has shifted both in language and scope, from the work of Messick and Kane to the updated Standards for Educational and Psychological Testing. However, these discussions haven't necessarily focused on best practices for different types of instruments or assessments, taking into account specific concerns for each instrument type. The purpose of the working group roundtable was to (1) illustrate validation activities and evidence for 4 distinct types of measures (forced-choice and mixed format knowledge assessments, Likert/Rating Scale instruments, performance assessments, and observation protocols), (2) facilitate a discussion of best practices for each of the measurement contexts, and (3) foster possible collaborations for dissemination of best practices for these contexts. This paper focuses on validation activities for forced-choice and mixed format knowledge assessments.