When the data from a research study form a 2×2 matrix, the phi-coefficient is used to measure effect size for the chi-square test for independence. If other factors are held constant, how does sample size influence the values for the phi coefficient and chi-square? a.A larger sample increases the phi coefficient but has no effect on the chi-square value. b.A larger sample size does not influence the phi coefficient or chi-square value. c.A larger sample increases the chi-square value but has no effect on the phi coefficient. d.A larger sample increases both the phi coefficient and chi-square value.

Answered: When the data from a research study…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter3: Matrices

Section3.7: Applications

Problem 41EQ

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When the data from a research study form a 2×2 matrix, the phi-coefficient is used to measure effect size for the chi-square test for independence. If other factors are held constant, how does sample size influence the values for the phi coefficient and chi-square?

	a.	A larger sample increases the phi coefficient but has no effect on the chi-square value.
	b.	A larger sample size does not influence the phi coefficient or chi-square value.
	c.	A larger sample increases the chi-square value but has no effect on the phi coefficient.
	d.	A larger sample increases both the phi coefficient and chi-square value.