Ron Has Alzheimer's Disease

question 4

Multiple Choice

Ron has Alzheimer's disease. He frequently forgets doctor's appointments and almost started a fire in his kitchen because he forgot a pan on the stove. Recently, his son was concerned because Ron blamed him for stealing his car keys when Ron simply forgot where he put them. What phase of Alzheimer's disease is Ron in?

• A) Ron is in the early phase of Alzheimer's disease.
• B) Ron's Alzheimer's disease has progressed beyond the early phases and he may no longer be able to care for himself.
• C) Ron's Alzheimer's disease has progressed to the point that he absolutely cannot care for himself and will need 24-hour assistance.
• D) Ron has reached the final phase of Alzheimer's disease.

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Definitions:

Independent Variable

A variable in an experiment or study that is manipulated or changed to observe its effect on the dependent variable.

Factorial Research

A research design that involves two or more independent variables, also known as factors, and examines their interaction and main effects.

Single-Factor Research

An experimental design where the effect of a single independent variable on a dependent variable is assessed.

Independent Variable

A variable that is manipulated or categorized to observe its effect on a dependent variable in experimental research.