William M. Baum, PhD, is Emeritus Professor at the University of New Hampshire and Associate Researcher at the University of California, Davis. He taught for seven years at Harvard University and for more than twenty years at the University of New Hampshire. He has published over 100 journal articles presenting laboratory research, theoretical contributions, and philosophical discussions on choice, cultural evolution, behavioral processes, and the philosophy of behavior.

• Preface ix1 Organism 12 Behavior 93 Behavior and Natural Selection 214 Covariance 315 Measurement 436 Stability and Change 557 Stimulus 738 Choice and Balance 859 Verbal Behavior and Rules 10310 Social Behavior and Culture 12111 Coda for Instructors 135Index 141

William M. Baum, PhD, is Emeritus Professor at the University of New Hampshire and Associate Researcher at the University of California, Davis. He taught for seven years at Harvard University and for more than twenty years at the University of New Hampshire. He has published over 100 journal articles presenting laboratory research, theoretical contributions, and philosophical discussions on choice, cultural evolution, behavioral processes, and the philosophy of behavior.

• Preface ix1 Organism 12 Behavior 93 Behavior and Natural Selection 214 Covariance 315 Measurement 436 Stability and Change 557 Stimulus 738 Choice and Balance 859 Verbal Behavior and Rules 10310 Social Behavior and Culture 12111 Coda for Instructors 135Index 141

William M. Baum, PhD, is Emeritus Professor at the University of New Hampshire and Associate Researcher at the University of California, Davis. He taught for seven years at Harvard University and for more than twenty years at the University of New Hampshire. He has published over 100 journal articles presenting laboratory research, theoretical contributions, and philosophical discussions on choice, cultural evolution, behavioral processes, and the philosophy of behavior.

• Preface ix1 Organism 12 Behavior 93 Behavior and Natural Selection 214 Covariance 315 Measurement 436 Stability and Change 557 Stimulus 738 Choice and Balance 859 Verbal Behavior and Rules 10310 Social Behavior and Culture 12111 Coda for Instructors 135Index 141