Gardner, E. F., & Thompson, G. G. (1956). Social-relations indices as predictors of group-effectiveness. In E. F. Gardner & G. G. Thompson, Social relations and morale in small groups (pp. 264-268). East Norwalk, CT, US: Appleton-Century-Crofts.
http://dx.doi.org/10.1037/14471-028
This chapter is a report of the correlations obtained between our social-relations indices and two measures of group-effectiveness. In the immediately preceding chapter we have shown that some of the social-relations indices are very effective predictors of several measures of esprit de corps morale. Now we will examine the success of the social relations indices in predicting the overtly observable accomplishments of the group, its effectiveness as a social unit. (PsycINFO Database Record (c) 2016 APA, all rights reserved)