Some studies (Moskowitz, 1975; Vance, 1975; Sturdivant and Ginter, 1977; Cochran and Wood, 1984) used a single survey which obtained data from one group type. Such was the research by Sturdivant and Ginter (1977). Their study involved a survey of company managers seeking for their evaluation on the level of CSP exhibited by other companies. A slightly different approach was used by others who triangulated data obtained from more than one group type (Vance, 1975; Alexander and Buchholz, 1978). For example, the study by Alexander and Buchholz (1978) probed separately businessman and business students who were asked to rate leading firms in the US on their perceived degree of social responsibility.