It was well documented that the cold beer be placed at the far left side of the fridge, and the warm beer be placed in the middle of the isle since consumers may want to "shop" or walk around before making a selection. Therefore, the internal validity can be assessed since the statistical conclusion is valid (Winter)
Content validity helps the test creator address the "match between test questions and the content or subject area they are intended to assess. This concept of match is sometimes referred to as alignment, while the content or subject area of the test may be referred to as a performance domain" (College Board, 2016)
"It gives students a clearer picture of why they got the score they got. It is also good for the teacher, because it gives her the ability to justify a score on paper, without having to explain everything in a later conversation" (Gonzalez, 2014)
"Reliability is the quality of a test which produces scores that are not affected much by chance. Students sometimes randomly miss a question they really knew the answer to or sometimes get an answer correct just by guessing" (KU, 2016)
Multiple-choice questions are measured quantitatively and some ways to measure such data is the Kuder-Richardson, the alpha coefficient, or the split-half. The Kuder and Richardson Formula 20 test allows the person to check for "internal consistency of measurements with dichotomous choices" (Real Statistics, 2016)