In a recent study,a random sample of children in grades 2 through 4 showed a significant negative relationship between the amount of homework assigned and student attitudes.What type of study is this?

A) An experiment
B) An observational study that is not a sample survey
C) An observational study that is a sample survey
D) The establishing of a causal relationship through correlation
E) A block design,with grades as blocks

Question

jagroop nijjar · Accepted Answer

Final Answer : B, Explanation :  This is an observational study because the researchers did not manipulate the amount of homework assigned, they just observed the relationship between homework and student attitudes. It is not a sample survey because the researchers did not ask the students to report their attitudes, they observed them directly.

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