When the Data Form a 2 X 2 Matrix,the Phi-Coefficient

question 19

Multiple Choice

When the data form a 2 x 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 the sample size influence the values for phi and chi-square?​

• A)​A larger sample increases both the values of phi and chi-square.
• B)​A larger sample increases the value of phi but has no effect on the value of chi-square.
• C)​A larger sample increases the value of chi-square but has no effect on the value of phi.
• D)​Sample size does not influence either the value of phi or chi-square.

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Definitions:

Stomach Wall

The layers of muscle and tissue that encase the stomach, responsible for the mechanical and chemical breakdown of food.

Digestive Enzymes

Biological catalysts that break down foods into their chemical components, making nutrients available for absorption.

Mucus

A thick, slippery secretion produced by mucous membranes, serving to protect and lubricate surfaces within the body.

Stomach pH

The level of acidity in the stomach, typically ranging from 1.5 to 3.5, which is crucial for digestion and destroying pathogens.