Under What Circumstances Can a Very Small Treatment Effect Be

question 45

Multiple Choice

Under what circumstances can a very small treatment effect be statistically significant?

• A)If the sample size big and the sample variance is small
• B)If the sample size and the sample variance are both big
• C)If the sample size is small and the sample variance is big
• D)If the sample size and the sample variance are both small

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Definitions:

Within-Subjects Designs

Experimental design in which the same participants are exposed to all conditions or treatments, allowing direct comparison of responses across conditions.

Order Effects

The impact of the order in which treatments, tasks, or stimuli are presented on the participants' responses in an experiment.

Counterbalanced Crossover Designs

A research method where participants are exposed to multiple conditions in a specific sequence to control for the effects of the condition order on outcomes.

Internal Validity

The degree to which the results of a study can be attributed to the interventions or variables being tested, rather than external factors.