A Physical Education Researcher Wishes to Determine If Walking Every

question 69

Multiple Choice

A physical education researcher wishes to determine if walking every day affects the health of middle-aged men. The researcher randomly identifies 400 participants in two groups. Members of one group belong to a health club and walk on its track and members of the other do not. After two months, the researcher decides the group who walks daily is healthier and concludes that walking positively affects men's health. This conclusion is of questionable validity because:

• A) of the placebo effect.
• B) of confounding variables in the study.
• C) the study is not double-blind.
• D) the researcher is not a doctor.

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Definitions:

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.

Receptors

Proteins located on the surface of cells that bind to specific molecules like hormones, drugs, or neurotransmitters, triggering various cellular responses.

MAO Inhibitors

Monoamine Oxidase Inhibitors are a class of antidepressant drugs that work by preventing the breakdown of monoamine neurotransmitters, increasing their availability in the brain.

Disinhibition Theory

A psychological theory suggesting that reduced inhibition of impulses or behaviors can lead to an increase in those behaviors, particularly in social or emotional contexts.