What type of study design is this

Reference no: EM133290539

Question: Given the following statement, answer the "fill in the blank" question below. "To test our hypothesis that adolescents in Mexico with high levels are physical activity are more likely to report higher grades in STEM classes, we randomly selected every 7th household on a list of addresses in Mexico City, and excluded households from the sample that did not have at least one adolescent (defined as aged 13-20) living there permanently. We obtained in-written consent from the participant or primary caregiver if the participant was underage by mail. We then sent a series of 4 surveys to the adolescent(s) in that household quarterly from November 2022 to December 2023. In this statement, what type of study design is this?

Reference no: EM133290539

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