Question

A student believes that a beverage improves memory. Two groups of students will be given a beverage before they take a test in class
please help

Answer 1

answer choices
One group should be given the beverage, the other group should be given water.

B.

One group should be given beverage, the other group should be given diet version of the beverage

C.

One group should be given a math test, the other group should be given a science test.

D.
One group should be given the beverage, the other group should be given beverage diluted in water.