Which criterion must be met to ensure the study can be replicated?

The criterion that must be met to ensure a study can be replicated is external validity. This concept refers to the degree to which the findings of a study can be generalized to settings, populations, or times outside of the specific conditions of the original study.

Replicability relies heavily on the ability to generalize the results. If a study exhibits strong external validity, researchers can apply the findings to similar situations or populations, allowing others to recreate the study under similar conditions and obtain similar results. This is essential for building trust in research findings and establishing them as credible contributions to the field.

In contrast, internal validity focuses on the accuracy of the study's results within the experimental context, ensuring that the observed effects are due to the treatment rather than confounding variables. While important for establishing causality, it does not directly address the broader applicability of the findings. Statistical conclusion validity involves the appropriateness of the statistical methods used and their ability to yield accurate conclusions. Quality control of hypotheses relates to how well the study design and methodology are structured but does not directly influence the replicability tied to external validity.

Therefore, establishing external validity is crucial for replication because it demonstrates that the results can be reliably applied to other contexts, enabling different researchers to replicate the study