Item Analysis: An Internet Application
Instructions are at bottom of form.
The uncorrected split-half reliability will be calculated. Also compute reliability statistics using: (Check all that apply)
Kuder-Richardson (KR20)
Cronbach's Alpha

Include statistics on:
All Alternatives
Only the Keyed alternatives
Include individual scores: No Yes
Include item difficulty: No Yes
Plain Text
Formatted Text
Export to Excel

To populate this form with sample data, select one of the buttons below:

Additional Testing Info at:
  • Univ of Lethbridge
  • Practical Assessment, Research and Evaluation
  • Univ of Illinois
  • Illinois Elementary School
  • Tech Paper from Paul Barrett
  • SAS (used in Samples 4 and 5) Also: here
  • SPSS (Used in Sample 6)
  • Answer Key:
    Number of Items:
    Responses are offset by:
    Number of Alternatives by Item:

    - Allows you to compute the Reliability and Biserial and Point-Biserial Correlations using the data you have entered above
    Enter data in the boxes. When entering the scores, do not type commas, periods, or other special characters. After you have entered the data, press the (COMPUTE) button. A report will then be generated and displayed on your computer. The data that you enter will be saved automatically so that you will not have to enter the data more than once.

    Mail questions to: webmaster. Created: June 2001; Last Updated: August 2007