Multiple Choice
(Scenario II) Suppose the authors of the study described in Scenario II had categorized children into high-ADHD, low-ADHD, and no-ADHD groups. Children were also categorized has having TD or not having TD. This design can be expressed as:
A) 2 × 2.
B) 3 × 3.
C) 3 × 2.
D) 3 × 4.
Correct Answer:

Verified
Correct Answer:
Verified
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