%0 Journal Article %T The Self Concept: Test Equivalence and Perceived Validity %A Spitzer, Stephen P. %A Stratton, John R. %A Fitzgerald, Jack D. %A Mach, Brigitte K. %J The Sociological Quarterly %V 7 %N 3 %P 265-280 %@ 1533-8525 %D 1966-06-01 %I Blackwell Publishing Ltd %~ DeepDyve