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Dr Martinez Is Studying the Development of Math Skills in Children

Question 115

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Dr. Martinez is studying the development of math skills in children. She has assessed three separate groups of children (Age 6, Age 8, and Age 10) in the past month and is comparing their behavior to determine age effects. The research design she is using is


A) cross-sectional.
B) cohort.
C) longitudinal.
D) sequential.
E) correlational

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