Date of Award


Document Type


Degree Name

Master of Arts (MA)



First Advisor

Norman H. Hamm

Second Advisor

Kenneth A. Deffenbacher

Third Advisor

William L. Blizek


Twelve groups of Ss participated in a probability learning task which was derived from Brunswik’s Lens Model. The groups varied according to age (7-8, 13-14, and 19-20 year olds), magnitude (.40 and .80), and the direction (positive and negative) of the ecological validity coefficient (cue-criterion correlation). The Ss were required to predict a two-digit criterion number after viewing a two-digit cue value. An analysis of cue utilization (S's response-cue correlation) and achievement (S’s responsecriterion correlation) revealed that Ss had much more difficulty dealing with cues which have a negative, rather than a positive, relationship with the criterion. Some evidence also was obtained indicating that children (7-8 years old) tend to copy the cue more often than adults.


A Thesis Presented to the Department of Psychology and the Faculty of the Graduate College University of Nebraska at Omaha In Partial Fulfillment of the Requirements for the Degree Master of Arts.

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