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…

The author initially cites the associationistic position of Spiker and the perceptual learning position of E. Gibson and concludes that the existing data does not clearly support either hypothesis. He describes a new approach designed to test these explanations of the role of verbal pretraining on subsequent discrimination learning. It consists of…

In order to determine if significant relationships exist among intersensory transfer ability, intersensory perceptual shifting ability, modal preference, and reading achievement, a study was conducted using 90 randomly selected Oconee County, Georgia, third graders whose mean IQ was 98 and whose mean reading comprehension was grade 3.…