This is the text of a colloquium of recent computer technology on psychometrics, particularly as practiced in the University of Washington's Bureau of Testing. Seven stages of career guidance are enumerated: (1) deciding what to measure; (2) developing the measures; (3) administering the measures; (4) scoring the measures; (5) weighting the scored measures; (6) reporting predictions; and (7) evaluating effectiveness. The impact of the computer on each stage is elaborated. The author argues against what he considers to be the fallacious assumptions underlying guidance in the past. He cites as the major shift as looking at career decision making from the point of view of the decision maker rather than from the point of view of society or one of its institutions. The paper concludes with a description of a decision value oriented career guidance system. (TL)