A Study of a Program to Help People Quit Cigarette

question 16

Multiple Choice

A study of a program to help people quit cigarette smoking had three groups of subjects. The first group received one supportive phone call 10 days after attending a program on strategies to resist smoking. A second group received a supportive phone call every week for 6 weeks after attending the program. A third group received no supportive phone calls after attending the program.
-In the above scenario, which of these properties of experimental research is evident?

• A) Quasi-experimental design with no control group
• B) Random assignment to research groups
• C) Manipulation of the treatment dose
• D) Control of extraneous variables

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Definitions:

Difference Threshold

The minimum difference in stimulation that a person can detect 50% of the time.

Stimuli

External factors or conditions that elicit responses from an organism or a part of the body.

Sensory Adaptation

How sensory receptors grow increasingly insensitive to stimuli that do not change, happening gradually.

Perceptual Set

A mental predisposition to perceive things in a certain way, influenced by expectations, culture, emotions, and other psychological factors.