*c. Content sampling error d. Scoring error QUESTION 10 What aspect of reliability is estimated by the KR-20 and KR-21 formulas? a. Stability b. Equivalency Oc. Internal consistency d. All of the above QUESTION 11 How would you expect a correlation coefficient obtained from two halves the same test? a. The two correlation coefficients would be nearly the same. Click Save and Submit to save and submit. Click Save All Answers to save all an