STATISTICAL TECHNIQUES AND TOOLS
ANALYSIS OF VARIANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False, this only applies to the Tukey test
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False, the Scheffe’ test compares means three at a time using all possible combinations
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False, the Scheffe’ test does not make comparisons of any kind
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Detailed explanation-1: -Scheffé’s method is a single-step multiple comparison procedure which applies to the set of estimates of all possible contrasts among the factor level means, not just the pairwise differences considered by the Tukey–Kramer method.
Detailed explanation-2: -The Scheffe Method The Scheffe post-hoc test should be used when you would like to make all possible contrasts between group means. This test allows you to compare more than just two means at once, unlike the Tukey post-hoc test.
Detailed explanation-3: -The Scheffes Test is used in an analysis of variance (ANOVA) to test multiple comparisons among a group of means. This test analyzes a group of means to evaluate the difference between the means. Scheffes test is used when making an unplanned comparison between data sets once an ANOVA test has been completed.