A Patient with Multiple Sclerosis Experiences Exacerbations of New Symptoms

question 6

Multiple Choice

A patient with multiple sclerosis experiences exacerbations of new symptoms that last a few days and then disappear.Which type of multiple sclerosis is this patient most likely experiencing?

• A) Relapsing-remitting
• B) Primary progressive
• C) Progressive relapsing
• D) Secondary progressive

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Definitions:

Independent Variable

In an experiment, it is the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Random Assignment

A method used in experiments to place participants into groups in a way that each has an equal chance of being assigned to any group, minimizing biases.

Independent Variable

The variable in an experiment that is manipulated by the researcher to observe its effect on the dependent variable.

Dependent Variable

In experimental and statistical research, the variable that is being tested and measured, and is expected to change as a result of manipulations to the independent variable.