The psychologist in this case used a concurrent validation strategy when it was technically not feasible. At the least, the psychologist should have planned and conducted the project in ways that would have minimised overstatement of the operational validity the new procedure would have. He also had the professional obligation to inform the client of limitation or pertinent facts about the study that could affect the operational validity of the new selection procedure. In particular, the psychologist needed to inform the client that the methods used were very likely to overstate the validity (and accuracy) of the selection procedure in operational use and that evaluating its validity on second sample would be highly important. Then, the client’s representatives could make an informed decision about whether to implement the program or not.