Question

A researcher has applied a different teaching technique to each of five different schools. He is interested in whether there will be a significant difference found among the mean of the five schools. Using standardized tests to measure the results, which statistical test would be most appropriate?

Question 25 options:

	Mann-Whitney U
	T-Test
	Sign Test
	ANOVA

Answer 1

Answer: A researcher has applied a different teaching technique to each of five different schools. He is interested in whether there will be a significant difference found among the mean of the five schools. Using standardized tests to measure the results, which statistical test would be most appropriate?

Solution:

The ANOVA is correct answer.

when you are analysing a numerical variable and certain assumptions are made to use Analysis Of Variance to compare the means of groups.

In ANOVA the total variation is subdivided into variation that is due to differences among the groups and the variation that is due to differences within the groups. In ANOVA F Test is used for differences among more than two means.

Therefore, a researcher used ANOVA test to found significant difference among the mean of five schools.