Which of the following is not true of a "natural" experiment?
A) An experimenter can draw conclusions about causation
B) Nature controls some of the variables
C) True random assignment to conditions is possible
D) The code of ethics for human-subjects must be applied

Question

Quizplus · Accepted Answer

Natural experiments involve manipulating variables that occur naturally, rather than intentionally manipulating them through random assignment. Therefore, true random assignment to conditions is not possible in a natural experiment.

Which of the Following Is Not True of a "Natural