A Researcher Introduces a New Exercise Program in the Psychiatric

question 34

Multiple Choice

A researcher introduces a new exercise program in the psychiatric ward of one hospital and uses the psychiatric ward at another hospital as a no-treatment control group. Before the program begins, the depressed patients in both hospitals are evaluated for their level of depression. After the program is in place for six months, the patients are evaluated again and the researcher compares the before and after scores for the two groups. This research study is classified as ____.

• A) correlational
• B) experimental
• C) quasi-experimental
• D) nonexperimental

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Definitions:

Muscle Fiber

An individual muscle cell, elongated and capable of contracting, that makes up skeletal muscles.

Diameters

Measurements of length through the center of a body or object from one side to the other, indicating its size in a specific direction.

Innervation

The supply of nerves to a specific body part, essential for initiating and controlling its function.

Motor Neurons

Nerve cells that transmit impulses from the central nervous system to muscles or glands, eliciting a response.