Multiple Choice
A researcher is examining motor skill development by observing children at 18 months old,24 months old,and 30 months old.If the researcher uses a cross-sectional design and obtains 20 scores for each age,how many children participated in the entire study?
A) 20
B) 40
C) 60
D) cannot determine without more information.
Correct Answer:
Verified
Correct Answer:
Verified
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