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…

The goal in personalized assessment is to best fit the needs of each individual test taker, given the assessment purposes. Design-In-Real-Time (DIRTy) assessment reflects the progressive evolution in testing from a single test, to an adaptive test, to an adaptive assessment "system." In this paper, we lay the foundation for DIRTy…