Analyzing Intervention Response: Practical Tips for School Psychologists

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In this webinar, Dr. Krach reviews three techniques for analyzing intervention data, which include graphing data trends, effect size, and percent non-overlapping data (PND). She reviews each of these techniques, and then applies them to two case studies. The case studies include analyzing the response to intervention for a student whose goal is to improve in reading, and a student whose goal is to decrease out of seat behavior. She then answers five questions related to collecting and analyzing data. She also provides a variety of free resources for participants to learn more and efficiently calculate the data. Presented by S. Kathleen Krach, Ph.D., NCSP in Novemeber of 2022. This individual webinar can be purchased for $25 (scroll down to purchase). The content in this webinar is intertwined with Domains 1, 2, 3, and 4 of the NASP Practice Model.’s recorded webinars are non-refundable. Attendees who complete this 1-hour webinar will receive 1.0 NASP-Approved CPD credit.

Learning Objectives:

1. Understand the basics of calculating effect size for intervention effectiveness decisions.

2. Understand the basics of calculating percent non-overlapping data (PND) for intervention effectiveness decisions.

3. Understand the basics of using graphical trend data for intervention effectiveness decisions.

Brief Bio:

S. Kathleen Krach, Ph.D., NCSP is an Assistant Professor at Florida State University in the school psychology program and the doctoral program in combined school and counseling psychology. Dr. Krach is licensed as a psychologist in the states of Florida, Nevada, and Alabama and holds the credential of Nationally Certified School Psychologist. Prior to working at FSU, she was an associate professor at Troy University, where she was the program coordinator for the school psychology and school psychometry programs. She was also co-listed as faculty in the counseling programs. Before working at Troy, she was an assistant professor at the University of Nevada Las Vegas (UNLV). She was co-listed there as well, as faculty in both the School Psychology and the Learning and Technology programs. For more information about Dr. Krach, please click here.

Attendee Feedback:

Ashley’s Overall Rating: 5/5 (Excellent)

“This was a useful reminder for evaluating interventions. I like the resources shared as well.” -Brianna

“The presentation was easy to understand and had applicable examples to the school setting.” – Erin

“I appreciate the way all the math is laid out in great detail.” -Logan

“This was an excellent presentation. I appreciate how Dr. Krach made complex information easy to understand. It is also directly applicable to my work in schools.” – Melanie

Shelby’s Overall Rating: 5/5 (Excellent)

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