Date of Award


Document Type


Degree Name

Doctor of Education (Ed.D.)



First Advisor

Dewey W. Chambers

First Committee Member

Robert W. Blaney

Second Committee Member

Lloyd H. King

Third Committee Member

John V. Schippers

Fourth Committee Member

Paul Witherington


The purpose of this study was to collect data from the controlled experiment that would add to the existing information concerning the improvement of the critical thinking skills of ninth grade pupils. The specific purposes of the study were: (1) to determine whether planned instruction in fact and opinion differentiation makes a statistically significant difference in a ninth-grader's general critical thinking ability; and (2) to determine the relation between a ninth-grader's gain in critical thinking ability and his level of intelligence, reading ability, socio-economic status, and his sex.



Included in

Education Commons



Rights Statement

Rights Statement

In Copyright. URI:
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).