ERIC Number: EJ295143
Record Type: CIJE
Publication Date: 1983
Reference Count: N/A
Internal Validity of Group Experimental Research.
Harber, Jean R.
Exceptional Education Quarterly, v4 n3 p77-83 Fall 1983
The article stresses the importance of controlling extraneous variables when studying educational problems. Threats to internal validity are discussed and examples given to illustrate their control. The importance of using control groups is illustrated. (Author/CL)
Publication Type: Journal Articles; Opinion Papers
Education Level: N/A
Authoring Institution: N/A