On the use of multiple comparisons test for the analysis of levelling discrepancies

In a number of papers dating from 1955,A.M. Wassef and his co-worker,F. Z. A. Messih, have demonstrated the application of the analysis of variance technique to the study of levelling discrepancies. The usual method of testing for the significance of means by the Fisher or F-test was used by these authors. In this paper the method proposed byWassef (1974) has been extended to include a multiple comparisons F-test, (Tukey, 1949).