Final answer:
Stimuli designed to be minimal pairs address concerns about construct validity. Construct validity ensures the experiment measures the concept it's intended to. Minimal pairs isolate the variable's impact, enhancing the test's accuracy.
Step-by-step explanation:
The student's question pertains to the concept of validity in psychological experiments, specifically regarding the use of minimal pairs. Stimuli designed as minimal pairs are often used to test the nuances in perception or cognition, making sure that any difference in response is due to the specific variable being tested rather than other extraneous factors. Therefore, stimuli designed to be minimal pairs address concerns about construct validity, which refers to the extent to which the test measures the concept or construct that it's intended to measure. Construct validity is a key aspect in ensuring that the operational definition of a variable accurately reflects the theoretical construct under investigation.