Complex sentence: Hafner found that the CMAS did not have the female biased he only found two questions that females always scored higher than their male counter parts Hafner, A. J. & Kaplan, A. M. (1959).
Split into simpler sentences: Hafner found that the CMAS did not have the female bias. He only found two questions that females always scored higher than their male counter parts Hafner, A. J. & Kaplan, A. M. (1959).