Item Analysis

Printer-friendly versionPDF version

The ITEM ANALYSIS tool provides statistics on overall test performance and individual test questions to help you recognize questions that might be poor discriminators of student performance. You can use this information to improve questions for future test administrations or to adjust credit on current attempts. You can run item analysis on deployed tests, but not on surveys.

You can access the Item Analysis menu from one of three (3) locations in Blackboard (i.e., (a) a test deplyed in a content area, (b) a deployed test listed in the Tests page, and (c) a Grade Center column for a test).

1a. Click the content area containing the test you are working on, click the small down arrow to the right of the name of the test and click Item Analysis from the drop down menu.

OR

1b. Click Control Panel, click Course Tools, click Test Surveys and Pools, click Tests, click the small down arrow to the right of the name of the test that you are working with and click Item Analysis from the drop down menu.

OR

1c. Click Control Panel, click Grade Center, click Full Grade Center, click the small down arrow to the right of the name of the grade column that is associated with the test that you are working on, and click Item Analysis.

 

2. Click Run to start the analysis of your selected test.


3. When the analysis is completed you will receive an email from Portal Help and a green confirmation bar will appear at the top of the screen. Locate the results of your analysis under the heading Available Analysis and click on it to view the details.

 

 

4. You will now be presented with the summary statistics at the top of the Item Analysis page that provide data on the test as a whole.

Note: Only graded attempts are used in item analysis calculations. If there are attempts in progress, Item Analysis ignores those attempts until they are submitted and you run the item analysis report again. To learn more about results on the Test Summary page, hover your mouse over the icon and if you wish to learn  more  about item analysis beyond the use of the tool, visit more information about item analysis.


5. You can filter the question table by Question Type, Discrimination Category, and Difficulty Category.

 

6. Click on a specific question to get more detailed analysis on that question.