how many questions are on the test and how hard or easy the questions are.
For example, if Kati got 10 right on both a math test and a science test, it would not be reasonable to conclude that her level of achievement in the two areas is the same. This illustrates why raw scores are usually converted to other types of scores for interpretation purposes. Percent Correct (PC) When the raw score is divided by the total number of questions and the result is multiplied by 100, the percent-correct score is obtained. Like raw scores, percent-correct scores have little meaning by themselves. They tell what percent of the questions a student got right on a test, but unless we know something about the overall difficulty of the test, this information is not very helpful. Percent-correct scores are sometimes incorrectly interpreted as percentile ranks, which are described below. The two are quite different. Grade Equivalent (GE) The grade equivalent is a number that describes a student’s location on an achievement continuum.
