multiple choice questions for Objective 12

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Chapter 12

This activity contains 2 questions.

Mr. Arroyo is interested in the gains made by his students from pretest to posttest. Which statistical test of significance is appropriate for him to use?

	Gain scores
	t test for dependent samples
	t test for independent samples
	ANOVA

Which of the following is a unique function of ANCOVA?

	It is a statistical method for equating groups.
	It controls for extraneous variables.
	It increases the power of the analysis.
	All of these

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