Abstract

The natural sciences are sometimes called "hard" sciences in contrast to the social sciences , which are thought to represent "soft" sciences. L. V. Hedges made an important effort to determine the empirical cumulativeness of various scientific research programs, with an eye toward assessing if this criterion is related to a discipline's "hardness" or "softness." This article discusses another criterion, a research program's predictive accuracy, that might also be considered along with a program's empirical cumulativeness. Finally, recent improvements in the predictive accuracy of multifaceted psychological theories are discussed. 2012 APA, all rights reserved)