In the context of operationalizing variables, which approach best ensures that a research study's findings are credible?

To ensure that a research study's findings are credible, it is important to operationalize variables clearly and accurately. This means defining how you will measure or observe the variables you are studying. For example, if you are researching "stress," you might measure it using a specific questionnaire that assesses stress levels. By using precise definitions and reliable measurement tools, you can provide clear evidence that supports your findings. This careful approach helps others trust your results and understand what your study really means.