Retesting should be considered under the following circumstances:
Inconclusive Results: If the initial test results are inconclusive or show only a marginal difference, a retest can help provide clearer insights. Significant Changes: If there are significant changes in the audience or external factors that could impact the results, retesting ensures the findings are still relevant. Large Sample Size: When dealing with a large sample size, retesting can help confirm that the results are statistically significant and not due to random variations.