The most common type of observational study is a(n)
A) experiment.
B) survey.
C) debate.
D) statistical inference.

Question

Quizplus · Accepted Answer

The most common type of observational study is a survey, where data is collected by observing or asking people questions without any manipulation or intervention by the researcher. Experiments involve manipulation of variables, debates involve argumentation, and statistical inference is a method of analyzing data rather than a type of study.

The Most Common Type of Observational Study Is A(n)