To measure how the complexity of a television image affects the viewer's ability to identify or recognize visual details within the image, two coders rated the form complexity of 30 public service announcements, basing their evaluation on the familiarity of the images in the announcements, the rate at which they presented new information, and the…

Extends control systems theory to analyze purposive collective behaviors, ranging from simple to complex, involving small and large groups. Suggests that complex collective phenomena can be explained as the repetition or combination of individual and collective sequences of action. Posits that control systems theory can be used to elucidate…

Describes the Giffen effect: demand for a commodity increases as price increases. Explains how applying control theory eliminates the paradox that the Giffen effect presents to classic economics supply and demand theory. Notes the differences in how conventional demand theory and control theory treat consumer behavior. (CH)

The effectiveness of training procedures which used visual-visual arbitrary matching, blocked-trial matching-to-sample, and successive discrimination training to teach visual-visual discrimination of two-dimensional forms was evaluated with two men having severe mental retardation. Results indicated that the procedures did establish conditional…

Experimentally examines reorganization, a fundamental component of William T. Powers' theory of mind based on the control theory of behavior. Attempts to model reorganization, focusing on improvements in performance with practice and how practice influences attention. Speculates how outputs from higher levels of the control hierarchy are involved…

Describes two studies involving chimpanzee mother-infant pairs in Tanzania between 1980 and 1987 that implemented control theory concepts. The first identified behavioral development in infant chimps; the second observed the growth of independence and parenting patterns. Concludes that the hierarchy of controlled variables develops consecutively…

Recounts an experiment where two groups of college students composed questions for a simulated quiz show and then answered each other's questions. They then answered questions comparing their performance with other groups. Proposes a social norm rather than attribution error explanation for the fact that groups consistently will underestimate…