A Test Used to Detect Anti-Rickettsia Antibodies in a Patientʹs

question 23

Multiple Choice

A test used to detect anti-Rickettsia antibodies in a patientʹs serum is the

• A) indirect fluorescent-antibody test.
• B) direct fluorescent-antibody test.

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Definitions:

Positively Reinforced

Involves the addition of a stimulus following a behavior that increases the likelihood of the behavior being repeated.

Extinct

A species, family, or larger group having no living members; no longer in existence.

Spontaneous Recovery

The reappearance of a conditioned response after a period of apparent extinction, without further conditioning.

Variable-Ratio Reinforcement Schedule

A reinforcement schedule in which the number of responses required for a reward varies, leading to high and consistent rates of response.