“…Using the Marlowe Crowne Social Desirability Scale (MC-SD Scale) as a measure of defensiveness these studies found differences between defensive Rs (high MC-SD) and non-defensive Rs (low MC-SD) for a number of personality dimensions and traits (Ginn, 1974;Kahn & Schill, 1971; Lefcourt, 1969;Schill & Althoff, 1968;Schill & Black, 1969;Schill, Emanuel, Pedersen, & Wachowiak, 1970),which led to a conclusion that the R-S Scale is multidimensional rather than unidimensional. This evidence of R-S multidimensionality, however, is weakened by the observation (Milliment & Cohen, 1973) that the R-S and MC-SD Scales are highly related (Abbott, 1972;Silber & Grebstein, 1964), which indicates that the above groups of defensive and non-defensive Rs vaIy systematically with respect to R-S and MC-SD dimensions. The obtained results, therefore, could be attributed either to R-S or to MC-SD.…”