Item Analysis: An Internet Application

Instructions are at bottom of form.
- Allows you to compute the Reliability and Biserial and Point-Biserial Correlations using the data you have entered below
The uncorrected split-half reliability will be calculated. Also compute reliability statistics using: (Check all that apply)
Spearman-Brown
Kuder-Richardson (KR20)
Cronbach's Alpha
 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 Sample 4)
  • SPSS (Used in Sample 5)
    • Output Options:

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

    Answer Key:
    Number of Items:
    Responses are offset by:
    Number of Alternatives by Item:
    Responses:

    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