Strunk, Katharine O.; Reardon, Sean F. - In: Journal of Educational and Behavioral Statistics 35 (2010) 6, pp. 629-670
The literature on teachers' unions is relatively silent about the role of union strength in affecting important … outcomes, due in large part to the difficulty in measuring union strength. In this article, we illustrate a method for … obtaining valid, reliable, and replicable measures of union strength through the use of a Partial Independence Item Response …