A Research Example Which is a good "rule of thumb" for selecting an experimental design?

Question

Quizplus · Accepted Answer

The best rule of thumb for selecting an experimental design is to select the simplest design that will adequately test your hypothesis. This ensures the experiment is not unnecessarily complicated and can reduce the potential for confounding variables. Additionally, simpler designs are often easier to interpret and replicate in future studies. Choosing a design based on the number of subjects or the ability to detect higher-order interactions may not be applicable to all research questions and can lead to less accurate results. The selection of a design with the lowest statistical power would not be advisable, as it could increase the likelihood of a Type II error, where a true effect is not detected.

A Research Example Which Is a Good "Rule of Thumb