A Confederate Stands near a Participant at a Bus Stop

question 23

Multiple Choice

A confederate stands near a participant at a bus stop and drops some papers. The dependent variable is whether the participant helps the confederate pick them up. In a factorial design, one independent variable is whether the confederate is male or female and the other is whether the confederate has a cane or not. Which of the following describes a potential interaction effect in this experiment?

• A) Participants help the confederate more when he or she has a cane.
• B) Participants help the confederate at a fairly high rate.
• C) Participants help the male confederate more when he has a cane but they help the female confederate at the same rate regardless of whether she has a cane.
• D) Many participants refuse to help.

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Definitions:

Epinephrine

A hormone and neurotransmitter also known as adrenaline, involved in the body's fight-or-flight response.

Aldosterone

A steroid hormone produced by the adrenal gland that regulates salt and water balance in the body.

Adrenal Gland

A pair of endocrine glands located above the kidneys that produce a variety of hormones including adrenaline and cortisol, which help control stress response, blood pressure, and metabolism.

PTH

Parathyroid hormone, a key regulator of calcium levels in the blood and bone metabolism.