How Many Additional Dummy Variables Are Required If a Categorical

question 16

Multiple Choice

How many additional dummy variables are required if a categorical variable has 4 levels?

• A) 2
• B) 3
• C) 1
• D) 4

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Definitions:

DSM-5

The 5th edition of the Diagnostic and Statistical Manual of Mental Disorders, a publication by the American Psychiatric Association that provides guidelines for diagnosing mental disorders.

Cannabis-Use Disorder

A medical diagnosis characterized by an individual's inability to abstain from cannabis amidst significant impairment or distress.

Craving

A powerful desire for a specific substance or experience, often related to food, drugs, or habitual activities.