Which Statement About the Cause of ADHD Is Correct

question 54

Multiple Choice

Which statement about the cause of ADHD is correct?

• A) The cause of ADHD is unknown.
• B) ADHD is caused by exposure to toxic substances in the preschool years.
• C) The cause of ADHD likely involves childhood vaccinations.
• D) ADHD is caused by genetic factors.

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Definitions:

Null Hypothesis

A hypothesis that assumes there is no significant difference or effect, serving as a default position in statistical hypothesis testing.

One-way ANOVA

A statistical test used to compare the means of three or more independent groups to see if there is a statistically significant difference among them.

Money Spent

The total amount of money expended on a particular purchase, project, or activity.

Specific Hypothesis

A precise, testable statement predicting the relationship between at least two variables in a research study.