Document Type


Date of Degree Completion

Winter 1972

Degree Name

Master of Science (MS)



Committee Chair

Donald E. Guy

Second Committee Member

Max Zwanziger

Third Committee Member

Vaughn Gerald Reed


Ss were required to sort geometrical patterns into positive or negative instances. According to (a) an attribute identification problem (wherein one of three conceptual rules was given: Disjunctive, Conditional, or Biconditional) or (b) Rule learning problem (wherein the two relevant attributes were given: either yellow, triangle or blue, circle). Intradimensional variability for each condition was either five, seven, or nine levels. The Rule effect was the only significant source of variance even though performance did worsen as intradimensional variability was increased.