Which of the following scenarios best exemplifies a between-subjects experiment?

In a between-subjects experiment investigating three separate treatments for agoraphobia, a participant who is randomly assigned to the first treatment group will also be asked to complete the other two treatments to see which one is most effective for them.

A researcher is designing a between-subjects experiment to compare the effects of 'traumatic writing' versus 'neutral writing' on student well-being. Arrange the following steps in the correct order to implement this specific study design.

Analyze the research examples involving university writing tasks and agoraphobia treatments. Match each specific experimental feature to the methodological role it plays in a between-subjects design.

A researcher is developing a new between-subjects experiment to test if 'natural sunlight' in a workspace improves employee productivity compared to 'fluorescent lighting.' Which of the following procedural structures should the researcher build to ensure the study is a valid between-subjects design?

In the example of a between-subjects experiment involving university students, researchers compare a traumatic writing condition with a(n) _____ writing condition so that each participant completes only one type of task.

To evaluate the rigor of a between-subjects experiment comparing three therapies for agoraphobia, a researcher must verify that participants were _____ to their groups to ensure that any differences in outcomes are caused by the treatments rather than pre-existing participant traits.

A researcher studying the effect of background noise on reading comprehension randomly assigns 50 undergraduate students to read a passage in either a noisy environment or a quiet environment, with no student completing both conditions. This study matches the defining structure of a between-subjects experiment, as illustrated by the traumatic/neutral writing and agoraphobia treatment examples.

Analyze each specific design feature drawn from the between-subjects experiment examples (traumatic/neutral writing study and agoraphobia treatment study). Match each feature to the methodological threat it is specifically designed to prevent.

A peer reviewer is judging whether a proposed study—in which participants are assigned to separate groups receiving different writing tasks or different therapies—qualifies as a rigorous between-subjects experiment. Arrange the following evaluative criteria in the logically correct order, from the most foundational check to the final overall judgment of rigor.