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

Question

Quizplus · Accepted Answer

Observational studies are typically surveys that gather information about a group of people or a population without any intervention or manipulation of variables. Surveys are the most common type of observational study since they are relatively easy to conduct and allow researchers to collect data about a large number of participants.

The Most Common Type of Observational Study Is