Justice Brennan, joined by Justice Marshall, first argued that the Court should not have decided the statutory issues at all. The majority faulted the Court of Appeals for importing Title VII standards into a constitutional claim, yet then decided statutory questions under 5 U.S.C. § 3304 even though the applicants had not pleaded a claim under that provision either. In his view, the Court should not reach statutory questions unnecessary to resolving the case.
If the statutory issue was to be decided, Justice Brennan would have affirmed the Court of Appeals because the District had not carried its burden of proving that Test 21 was job related. The parties and lower courts had treated Title VII principles as controlling, and the Civil Service Commission itself viewed its job-relatedness standard as consistent with Title VII. Under those principles, once disparate impact was shown, the employer had to validate the test through a meaningful connection to job performance.
The claimed validation study showed only a correlation between Test 21 scores and average scores on written recruit-school examinations. It did not establish that the recruit-school examinations measured mastery of the curriculum, that the curriculum taught skills necessary for police work, or that either training scores or Test 21 scores predicted job performance for Black officers. Indeed, all recruits ultimately passed the training examinations, sometimes with additional assistance, which weakened the claim that a particular examination average measured meaningful training success.
Justice Brennan read Griggs and Albemarle to require that a discriminatory employment test be demonstrably related to job performance, either directly or through professionally acceptable validation methods. Permitting a general verbal-ability test to be validated merely by its correlation with another written test risked allowing employers to reproduce the same verbal-skills measure at two stages and call the resulting correlation job related. He warned that the majority’s approach could significantly weaken statutory protections against discriminatory employment practices.