Traditional Eye Tests in Which a Person Is Shown a Chart

question 121

Multiple Choice

Traditional eye tests in which a person is shown a chart with a set of letters in a line that gets progressively smaller near the bottom of the chart are designed to directly assess

• A) visual acuity.
• B) depth perception.
• C) color blindness.
• D) field of vision.

---

Definitions:

Experimental Research Design

A scientific method in which variables are manipulated and controlled to establish cause-and-effect relationships between them.

Ethical

Concerned with or relating to ethics or the standards of right and wrong behavior.

Cause and Effect

A relationship in which one event (the cause) makes another event happen (the effect).

Placebo Effect

The phenomenon where patients experience real improvements in their condition after receiving a treatment that has no therapeutic effect.