A Strategy for Optimizing Item-Pool Management

Item-pool management requires a balancing act between the input of new items into the pool and the output of tests assembled from it. A strategy for optimizing item-pool management is presented that is based on the idea of a periodic update of an optimal blueprint for the item pool to tune item production to test assembly. A simulation study with scenarios involving different levels of quality of the initial item pool, item writing, and management for a previous item pool from the Law School Admission Test (LSAT) showed that good item-pool management had about the same main effects on the item-writing costs and the number of feasible tests as good item writing, but the two factors showed strong interaction effects.     

False Equivalency: Think Tank References on Education in the News Media

This study explores the use and presentation of information and research on education by the news media. Using content analysis, this study compares four types of think tanks—contract research, academic, advocacy, and mixed academic and advocacy—and shows how the news media represented each one as a source of research, facts, and figures on education. The findings from this study show that the news media presented all the think tanks as credible sources of research, facts, and figures on education, regardless of the extent to which each think tank emphasized policy and political advocacy over the professional norms of academic research.