Intervention Analysis Tool

Teachers design interventions for students every day. Whether it is an instructional intervention designed to increase academic performance or a behavioral intervention designed to lower unpleasant incidents in the classroom, accurate data analysis is a vital element for measuring the impact of the intervention. I designed the Intervention Analysis Tool (IAT) to be an incredibly easy and efficient way for teachers to gain better insight into the impact of single-student interventions. With just a few clicks, the IAT will prepare a report that you can use to jump-start your data conversations.



  1. Prepare your data. Your data must consist of two columns named “Phase” and “Score”.

    • In the “Phase” column, you should code your phases using “A” for the baseline period and “B” for the intervention period. If you are using an ABA or ABAB design, you should code your phases “A1”, “B1”, “A2”, and “B2”.

    • The “Score” column should include the outcomes of your dependent variable. For example, if you are monitoring the number of times that a student gets out of their seat during a class period, you should put that number in the “Score” column. Your score must be a numeric variable.  

    • Save your data as a .CSV file.

  2. Upload your data to the IAT by selecting “Browse” and selecting your file from the list. Remember, you should never upload personally identifiable data for yourself or your students to the web!

  3. The IAT will automatically produce a summary of your spreadsheet. Use the tabs at the top to select the study design model that matches your data; “AB”, “ABA”, or “ABAB”.

  4. The read out from this page can be copied and pasted into a document or slide show to share with your data team.


If you need additional help or want more detailed information about how to use the IAT or interpret its results, please review the technical directions page. You can also use these sample files to practice: AB Model, ABA Model, ABAB Model