Summary
Contents
For more than 40 years, SAGE has been one of the leading international publishers of works on quantitative research methods in the social sciences. This new collection provides readers with a representative sample of the best articles in quantitative methods that have appeared in SAGE journals as chosen by W. Paul Vogt, editor of other successful major reference collections such as Selecting Research Methods (2008) and Data Collection (2010).
The volumes and articles are organized by theme rather than by discipline. Although there are some discipline-specific methods, most often quantitative research methods cut across disciplinary boundaries.
Are Simple Gain Scores Obsolete?
Are Simple Gain Scores Obsolete?
Contact SAGE Publications at http://www.sagepub.com
Encoding from PDF of original work
Over a quarter century ago, Cronbach & Furby (1970) and many other authors (e.g., Gulliksen, 1950; Lord & Novick, 1968) concluded that simple differences between pretest and posttest scores have questionable ...