“…The assumption, however, is that both Blacks and Whites are characterized by the same regression line. Although it has been found that the slopes of both the Black and White regression lines are often similar, they frequently have different intercepts (e.g., Boehm, 1977;Field, Bayley & Bayley, 1977;Grant & Bray, 1970;Gael, Grant & Ritchie, 1975b;Ruch, 1972, as cited in Arvey & Faley, 1988;Schmidt, Berner & Hunter, 1973). Furthermore, the intercept of the regression line for Blacks is frequently found to be lower than the regression line for Whites, indicating that the use of a common regression line would over-predict job performance for Blacks according to the Cleary rule.…”