Abstract
Numerous writers have recently called for reform in psychological theorizing and research methodology designed to appreciate the teleological, active agent capacities of humans. This paper presents three studies that probe individual's abilities to volitionally control their eating behavior. These investigations suggest one way that researchers might consider the operation of telic powers in human action. Rather than seeing teleological explanations as rivals to the more traditional causal explanations favored in psychological research, this paper elaborates a position that sees human volition as a causal force embedded in the traditional causal influences studied in psychological research. Finally, the theoretical and methodological refinements suggested here and elsewhere are seen against the backdrop of a philosophy of science that sees change as a more gradual, evolutionary process, rather than the Kuhnian, revolutionary process