Although content validity--how well each item of an instrument represents the construct being measured--is foundational in the development of an instrument, statistical validity is also important to the decisions that are made based on the instrument. The primary purpose of this study is to demonstrate how simulation studies can be used to assist…

Multiple true-false (MTF) items are a widely used supplement to the commonly used single-best answer (Type A) multiple choice format. However, an optimal scoring algorithm for MTF items has not yet been established, as existing studies yielded conflicting results. Therefore, this study analyzes two questions: What is the optimal scoring algorithm…

Using de-identified data, this study investigated the relationship between racial categories with curriculum-based early writing measures (CBM-W), which included word dictation, picture word sentence writing, and story prompt tasks for over 300 participants in Grades 1, 2, and 3. Words written, words spelled correctly, correct letter sequences,…