The Item Analysis Report is a statistical report that provides detailed distractor analysis based on raw scores. It statistically calculates the reliability, difficulty, and effectiveness of test questions. Students in this Group - the number of students taking the test. Measure of Skewness - the degree of asymmetry of the distribution around its mean. Positive skewness means that the scores trail off in the direction of higher scores.
Negative skewness means that the scores trail off in the direction of lower scores.
Reliability Coefficient - the consistency of the test items. Highest Score - the highest test score received on the current test. Degree of Kurtosis - the degree of peakedness or flatness exhibited by the distribution. A positive kurtosis means that the shape of the score distribution is peaked. A negative kurtosis means that the shape of the score distribution is flat.