_____(a)_____ is of primary importance in laboratory experiments, _____(b)_____ is of primary importance in survey studies.
A) random assignment; random assignment
B) random assignment; random sampling
C) random sampling; random assignment
D) random sampling; random sampling

Question

Quizplus · Accepted Answer

Random assignment is crucial in laboratory experiments to ensure that each participant has an equal chance of being assigned to any group, thereby controlling for confounding variables. Random sampling is key in survey studies to ensure that the sample represents the population, allowing for generalization of the results.

_____(A)_____ Is of Primary Importance in Laboratory Experiments, _____(B)_____ Is

___(A)_ Is of Primary Importance in Laboratory Experiments, _(B)___ Is