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Utility Formula. [(Ns)*(T)*(r)*(SDy)*(Zs)]-[(N)*(C)]. Formula for expected dollar value increase to the organization using the predictor for selection. [(Ns)*(T)*(r)*(SDy)*(Zs)]-[(N)*(C)]. Ns = number of applicants selected T = tenure of selected group in years
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[(Ns)*(T)*(r)*(SDy)*(Zs)]-[(N)*(C)] Formula for expected dollar value increase to the organization using the predictor for selection
[(Ns)*(T)*(r)*(SDy)*(Zs)]-[(N)*(C)] • Ns = number of applicants selected • T = tenure of selected group in years • r = correlation between predictor and job performance (VALIDITY) • SDy = standard deviation of job performance • Zs = average standard predictor score of selected group • N = number of applicants • C = cost per applicant