Consider the following situation: A group of 300 students is randomly selected at a local high school and required to fill out yearly questionnaires on family income. Students' performances on standardized tests are then followed throughout their high school years to determine if socioeconomic status affects SAT scores. This describes an experiment.

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Quizplus · Accepted Answer

This situation describes an observational study, not an experiment, because the researchers are observing and collecting data on the students' socioeconomic status and SAT scores without manipulating any variables.

Consider the Following Situation: a Group of 300 Students Is