Multiple Choice
Xiao is gathering research on the number of daily calories people typically consume at various ages. He gathers data about the number of calories eaten by 25 people at each of the following ages: 10, 20, 30, 40, 50, 60, and 70 years. What type of research design is Xiao using?
A) continuous
B) cross-sectional
C) sequential
D) longitudinal
Correct Answer:
Verified
Correct Answer:
Verified
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