Content validity is concerned with three components: (1) the job content; (2) the test content, and (3) the strength of the relationship between the two. A content validation study, to be considered adequate and defensible should include at least the following four procedures: (1) A thorough and accurate job analysis (to define the job content); (2) A thorough, intensive review and evaluation of the test by field experts to determine its content and relatedness to a job characteristic at the appropriate level. The use of field experts is important since content validity relies heavily upon expert judgment; (3) A comparison between the test content and the job content considering many important factors, to assess the extent to which the total test is job related; and (4) Documentation of each procedure of the content validation study. (Author/MV)