Noting that there has been extensive discussion of the relation of evaluation to: (1) research; (2) explanations (a.k.a. theory-driven, logic model, or realistic evaluation); and (3) recommendations, the author introduces: (4) prediction. He advocates that unlike the first three concepts, prediction is necessarily part of most kinds of evaluation, although to varying degrees. To support his view, the writer discusses the predictive aspect as applicable to: (1) product evaluation; (2) program evaluation; (3) personnel evaluation; (4) policy analysis; (5) proposal evaluation; and (6) portfolio evaluation.