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ERIC Number: ED123391
Record Type: Non-Journal
Publication Date: 1976-Apr
Pages: 5
Abstractor: N/A
Reference Count: N/A
The Five Point Scale on Graduate Students Evaluations of Instructor Performance.
Helwig, Carl
The five point scale is the most frequently applied scaling used in the current practices for evaluating instructor classroom performance through graduate student observations. Hence, the investigation addressed itself toward determining, through a series of 55 computerized exact randomization tests, at what degree of mean differences would several graduate student reported classroom means produce statistical significance at alpha .05 on a one-tailed test in either direction. Obviously, the primary intent was to sort out nonrandom from random reported observations so when an instructor compared two means on himself from two classes or a comparison between two instructors and their reported means were compared, such evidence was to be nonrandom rather than random as usually required in behavioral theory and analysis. The results indicated that an instructor would have to have a mean difference between 2.25 and 2.50 to assure himself reasonably that the reported observations on him were nonrandom. The simulated results revealed several severe constraints with the five point scale, making its practical application and interpretation most questionable. Two references are listed. (Author/JR)
Publication Type: Speeches/Meeting Papers
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A