Primary Immunodeficiency Disorders Include All of the Following Except

question 5

Multiple Choice

Primary immunodeficiency disorders include all of the following except:

• A) XLA.
• B) CVID.
• C) AIDS.
• D) SCID.

---

Definitions:

Cholesterol Levels

The amount of cholesterol present in the bloodstream, important for assessing heart disease risk.

Sign Test

A non-parametric test that assesses the median of a statistical population by comparing the number of positive vs. negative changes from a median value.

Matched Pairs

A study design where each participant is paired with another participant who has similar characteristics, but receives a different treatment.

Null Hypothesis

A statement used in statistics that assumes no significant difference or effect exists in a set of observations.