# GradeHub App - Overall exam statistics

Last Updated: September 13, 2018# Overall exam statistics

Under the **Analyze Exam** button, there are a variety of reports to review your exam results.

- Log in to GradeHub
- Select the course and exam you want to view reports for
- Select the
**Analyze Exam**button to review reports

## Statistics

- The top of the
**Analyze Results**view includes:**Test Reliability**using a**Kuder-Richardson 20 (KR-20**) internal measure of test reliability, which determines the consistency of a test. The higher the reliability, the more likely you would produce similar results administering the same test to the same class- The class
**Mean**and**Highest**and**Lowest S****cores** - The
**Standard Deviation**, which__percentage__spread of scores from the mean. A smaller standard deviation means scores are "tightly" spread around the mean. Whereas, a high standard deviation indicates a large variation in exam results.- To convert the standard deviation from a percentage to points, multiply the % standard deviation on the
**Analyze Results**report by the total points possible on the exam.

- To convert the standard deviation from a percentage to points, multiply the % standard deviation on the

## Reports

### Histogram of student scores

- The
**Student Scores Density**graphs the number of students receiving a given score on the vertical axis with the percent obtained on the horizontal axis.

### Distribution table

- Select the
**Distribution**tab to view a distribution of scores in 10% increments

### Score percentiles table

- Select the
**Percentile**tab to view score percentiles sorted from largest to smallest scores.