Political concepts are supposed to give us tools to figure out how to bring about the society we want. Theory constructs frameworks of political concepts to understand the past, carve out answers for ...

Includes updates and/or revisions. The statistician who pioneered the use of “value added” research techniques for documenting students’ year-to-year academic progress is disputing a critique of his ...

Meta-analysis is an objective examination of published data from many studies of the same research topic identified through a literature search. Through the use of rigorous statistical methods, it can ...