Sensitivity data is defined as involving two response categories, with responses observed at different levels of some variable. The responses are taken to indicate sensitivity to the variable and may be labeled "positive" or "negative." The countback method offers confidence limits for the 50% point, the level of the variable…

Criticizes the account of observation given by Alan Chalmers in "What Is This Thing Called Science?" and provides an alternative based on direct realist approaches to perception. Contains 15 references. (Author/WRM)

Using open-ended questions to elicit responses from 77 kindergarteners, 24 second graders, and 25 fifth graders in New York, an attempt was made to determine how children perceive the accuracy and the reality of television programs. The kindergarteners and second graders tended to restrict their observations to specific visual traits, while the…

In the past 25 years, there has been an explosion in research on the development of perception. The research has produced discoveries at multiple levels: ecological analyses, models of representation and process, and improved understanding of biological mechanisms. This book provides a comprehensive treatment of infant perception, bringing…