1941 research outputs found
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Drake Neighborhood Housing Starts
No full textIncludes building name and architect when available, through 1972. Taken from City building permits and periodical sources
Quantitive Determination of Muscle Glycogen Content Following Partial Hepatectomy of the Laboratory Rat
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The Development of Council Bluffs as a Staging Area for Western Development, 1838-1869
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A Development of a Training Program Designed to Increase Teacher Aide Effectiveness in the Ankeny Elementary Schools
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A Mathematical Model for Type II Instrumental Discriminations
Get PDF47 leaves.Using the same assumptions found in the Trabasso & Bower (1968) mathematical model for type I and relevant redundant cue (RRC) discriminations, a mathematical model was proposed for type II discriminations. A type I discrimination has one relevant cue. An RRC discrimination has two relevant cues, either of which could be used, independently, to solve the discrimination problem. A type II discrimination has two relevant cues, both of which must be used before the discrimination problem can be solved.
In the Trabasso & Bower (1968) model, the difficulty of a type I discrimination problem was defined in terms of the salience of the relevant cue, where salience was represented as a measure of the probability of S attending to a particular cue in a stimulus complex. The difficulty of an RRC discrimination problem was defined as the sum of the two relevant saliences. Since a type II discrimination requires attention and usage of both relevant cues in the problem, the difficulty of the discrimination problem was assumed to be a multiplicative function of the two relevant cue saliences.
This hypothesis was tested and supported. The mathematical model could predict the mean errors for a type II discrimination. However, the experiment also produced data which conflicted with Trabasso & Bower's (1968) assumptions. For example, Ss were capable of learning a new solution to a discrimination problem, even though a previously learned solution was still correct. It was concluded that changes in the underlying assumptions of the Trabasso & Bower (1968) model may necessitate a change in the mathematical model itself
