The following tutorial shows how to view the Item Analysis for an
Assessment. This report provides an analysis for each question in an
assessment and can be used to help you spot questions that were especially
difficult or easy for your students. |
|
|
|
TOP |
- Go to the Teach tab
- Click on Assessment Manager
- Click on the ActionLinks
icon next to the assessment you want to review
- Select View Reports
- Select Overall Statistics
- Press Run Report
- Overall Statistics report shows the
following information for each question:
- N: Number of Students who answered the
question.
- Percent Answering Correctly:
- Whole Group: Percentage of Students
who answered the question correctly.
- Upper 25%: Percentage of Students
whose score is in the upper 25% of the class.
- Lower 25%: Percentage of Students
whose score is in the lower 25% of the class.
- Discrimination: Indication of how well
the question distinguishes between Students who have a high
score and those who have a low score. The discrimination is
between 1 and -1. A negative number indicates that the
lower-scoring Students performed better on this question
than the high-scoring Students.
- Mean: Average score for a question.
- Median: Middle score for a question. If
there is an even number of scores, the median is the average
of the two middle scores.
- Standard Deviation: Average of the
amount that the results deviate from the average score.
- For additional help on using the Item Analysis
view, press the Help link at the top of the
Blackboard Window when you are viewing the report.
|
|
Return
|
Still have a Question? Click Help
in the top right corner of your Blackboard course.
Printer-Friendly Version
