Dr. fernandez was interested in the effects of caffeine on reaction time. after administering various doses of caffeine to different participants, she tested participants’ reaction times. this is an example of research.

experimental

Explanation:

According to my research on different research methodology, I can say that based on the information provided within the question this is an example of experimental research. This refers to a research approach where you do not know what the results will be so the researcher creates a series of controlled tests in order to gather data and come to a certain conclusion.

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when you rub, you also apply pressure, that pressure can urge the poop to come out. i think that when your rubbing, you also might be slightly breaking it up and that can further fill the stomach.