which-of-the-following-is-an-example-of-a-positive-control-in-an-experiment-test

Question

Which of the following is an example of a positive control in an experiment testing a new anti-inflammatory drug?

Accepted Answer

A known effective anti-inflammatory drug.

Answer

A placebo pill with no active ingredients.

Answer

A saline solution with no therapeutic effect.

Answer

A new drug with unknown effectiveness.