grade 12 · STAT2-005

Explain random assignment

Separate random sampling for generalization from random assignment for treatment comparison.

Learn togetherFresh problem · seed 910042222

Why is random assignment valuable in a controlled experiment?

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Work through one checkpoint at a time. Your answer area opens after the reasoning.

Checkpoint 1

Random assignment concerns how participants enter treatment groups.
Checkpoint 2

Its purpose is comparability of groups before treatment.
Checkpoint 3

Random sampling, not random assignment, is the design feature tied most directly to population generalization.

It guarantees every participant responds to treatment.It removes all measurement error from the study.It helps balance lurking variables between treatment groups, supporting a causal comparison.It guarantees the sample represents the entire population.