Paul and Michael Sell Magazine Subscriptions by Telephone

question 121

Multiple Choice

Paul and Michael sell magazine subscriptions by telephone.Paul is paid $1.00 for every five calls he makes,while Michael is paid $1.00 for every subscription he sells,regardless of the number of calls he makes.Paul's telephoning is reinforced on a ________ schedule,whereas Michael's is reinforced on a ________ schedule.

• A) variable-ratio;fixed-ratio
• B) fixed-ratio;variable-ratio
• C) fixed-ratio;variable-interval
• D) fixed-interval;variable-ratio

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Definitions:

Immune System

The complex network of cells, tissues, and organs in the body that works together to defend against infection, disease, and foreign substances.

Macrophage

A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells.

Serotonin

A neurotransmitter in the brain involved in regulating mood, appetite, and sleep, among other functions. Low levels are associated with depression.

Adrenal Gland

Endocrine glands located above the kidneys that produce various hormones, including adrenaline and steroids affecting the body's metabolism and blood pressure.