The Tuberculin Skin Test, or PPD Test, Is Based on

question 17

Multiple Choice

The tuberculin skin test, or PPD test, is based on

• A)delayed hypersensitivity cell-mediated immunity to certain antigenic components of the organism.
• B)injection of M.tuberculosis under the skin and subsequent mild cutaneous infection.
• C)antigen-antibody reactions occurring at the injection site.
• D)All of the above are correct.

---

Definitions:

Milgram Experiment

A psychological experiment conducted by Stanley Milgram in the 1960s to study obedience to authority, where participants were instructed to administer electric shocks to another person.

Stanford University Prison Experiment

A psychological study conducted by Philip Zimbardo in 1971 at Stanford University, where students were assigned roles of prisoners and guards to explore the effects of perceived power.

Generalization

Drawing a conclusion about a certain characteristic of a population based on a sample from it.

Logical Support

The provision of reasons or evidence to justify a claim or argument.