Discusses the practice of maintaining separation between the experimenter and the subjects during scientific experiments and suggests that the dialectical interdependence between them is the very basis upon which psychological inquiries should rest. Some practical and theoretical remedies are explored. (JMB)

Examines relationships between the fields of behavior analysis and developmental psychology, surveying the influence of behavior-analytic research within developmental psychology and investigating the integration of the two approaches with respect to metatheory and methodology. (Author/MP)

Evaluates empirical studies on child development. Suggests that most such research consists of studies of a priori, nonempirical, logical relations between concepts, whose definitions guarantee the relationship studied. Argues that hypotheses are empirical if variables involved are semantically and logically independent. Research that is not based…

Comments on the ideas espoused by Smedslund (PS 522 552) in this issue. Agrees to the idea of spending more intellectual energy in distinguishing between a priori and empirical hypotheses but emphasizes that concepts are not always accurate reflections of reality and that even empirical disconfirmation of an a priori hypothesis sometimes can…