This book is a survey of key issues in the theory of evaluation aimed at exhibiting and clarifying the rational nature of the thought-procedures involved. By means of theoretical analysis and explanatory case studies, this volume shows how evaluation is¿or should be¿a rational procedure directed at appropriate objectives. Above all, it maintains the objectivity of rational evaluation.

Nicholas Rescher is Distinguished University Professor of Philosophy at be University of Pittsburgh where he has also served as Chairman of the Philosophy Department and a Director of the Center for Philosophy of Science.

1. Value Basics.- 2. Value Attribution.- 3. Rational Choice and Value Complementarity.- 4. Integration Problems.- 5. Rationality Issues.- 6. Rational Choice and Merit Complementarity.- 7. Circularity Issues.- 8. Evaluating Cognitive Significance.- 9. Epistemic Evaluation.- 10. Allocating Scientific Credit.- 11. Evaluating Contention Tenacity.