Three independent measures of acquiescence response set, Cattell's 16 PF and the Couch and Keniston short acquiescence scale, OAS(s), were administered to 263 United States airmen. All variables except the OAS(s) were intercorrelated and factored. Estimated correlations were obtained between the factors and the OAS(s) total score and items. Results indicated that the variance of the OAS(s) is determined predominantly by a broad questionnaire factor of anxiety and to a much lesser extent by acquiescence response set, a questionnaire factor of extroversion, and low intelligence. It was concluded that a simple acquiescence interpretation of scores on this measure is not supportable.