Pearson's R Is the Appropriate Measure of Association for a Pair

question 28

Multiple Choice

Pearson's r is the appropriate measure of association for a pair of variables if

• A) at least one variable is nominal
• B) at least one variable is ordinal
• C) one and only one variable is interval/ratio
• D) both variables are interval/ratio

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Definitions:

Neurotransmitter

Chemical messengers that transmit signals across a chemical synapse from one neuron to another 'target' neuron, muscle cell, or gland cell.

Endogenous

Originating from within an organism, tissue, or cell, used to describe processes or substances that are internally generated.

Naturally Occurring

Referring to substances, phenomena, or processes that exist or happen without human intervention.

Polarized

A term indicating something is divided into two sharply contrasting groups or sets of opinions or beliefs.