To control for the possible lurking variables when assigning subjects to the experiment's treatments, use:
A) a placebo and double blinding.
B) blocking and randomization.
C) probability sampling and confounding.
D) explanatory and response variables.

Question

Quizplus · Accepted Answer

Blocking and randomization are the best choices to control for lurking variables when assigning subjects to the experiment's treatments. Blocking involves grouping similar subjects together and then randomly assigning them to treatments, which helps control for potential confounding variables. Randomization ensures that each subject has an equal chance of being assigned to any treatment group, which helps ensure that any differences between groups are due to the treatment and not some other factor. The other options, while important in other areas of experimental design, do not directly address the issue of controlling for lurking variables during subject assignment.

To Control for the Possible Lurking Variables When Assigning Subjects