Statistical studies in which researchers do not control variables of interest are _____ studies.
A) experimental
B) random variable
C) inferential
D) observational

Question

Quizplus · Accepted Answer

Observational studies are those in which researchers simply observe and measure variables of interest without controlling them. In contrast, experimental studies involve the manipulation of variables to observe their effect on an outcome, while inferential studies are those that use data to infer conclusions about a larger population. Random variable is a concept used in probability theory and statistics to describe a variable whose value is determined by chance.

Statistical Studies in Which Researchers Do Not Control Variables of Interest