If 50% of the Individuals Taking a Particular Test Get

question 53

Multiple Choice

If 50% of the individuals taking a particular test get a certain item correct, the difficulty (or easiness) level of that item would be

• A).05.
• B).25.
• C).50.
• D).10.

---

Definitions:

Ammonia

Nitrogenous end product that takes a limited amount of energy to produce but requires much water to excrete because it is toxic.

Aldosterone

A steroid hormone secreted by the adrenal glands that regulates sodium and potassium balance in the blood, influencing blood pressure and fluid balance.

Hormone

Chemical substances produced in the body that regulate and control the activity of certain cells or organs.

Renin

Enzyme released by the kidneys that leads to the secretion of aldosterone and a rise in blood pressure.