A teacher wrote a test consisting of five dichotomous items and wants to know if the items…


A schoolmaster wrote a trial consisting of five dichotomous items and wants to recognize if the items adequately clothe the contenteded estate being tested. He decides to use the KR 20 formula to enumerate the inside solidity of the trial. Using the forthcoming knowledge, count the inside solidity using the KR 20 formula. Are the trial scores legitimate in terms of inside solidity?