The closer an experiment is to the real world, the more psychologists can claim it has:

Question

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External validity refers to the extent to which the findings of a study can be generalized to the real world. Therefore, the closer an experiment is to the real world, the higher its external validity. Internal validity refers to the extent to which the study accurately measures what it intends to measure, reliability refers to the consistency of results, and statistical significance refers to the likelihood that the results are not due to chance. While these are important considerations in experimental design, neither of these terms directly relates to the closeness of the experiment to the real world.

The Closer an Experiment Is to the Real World, the More