A Researcher Wants to Investigate Whether People Can Concentrate as Effectively

A researcher wants to investigate whether people can concentrate as effectively in the morning if they do not eat breakfast.He will score some volunteers on reading comprehension tests.Some of the testing will be done after volunteers have eaten breakfast,and some testing will be done after volunteers have skipped breakfast.Design an experiment that will require a two-sample t-test to analyze the results.Design an experiment that will require a matched pairs t-test to analyze the results.Which experiment would you consider to be the stronger design?