Practical Functional Assessment, Skill-Based Treatment, and Essential For Living

Introduction to PFA/SBT and EFL In the evolving field of Applied Behavior Analysis (ABA), the focus is increasingly shifting toward building skill repertoires in individuals with moderate-to-severe disabilities, including, but not limited to, autism spectrum disorders. Behavior analysts like Greg Hanley, Patrick McGreevy, and Troy Fry have been instrumental in this transformation, emphasizing the need […]

What is Essential For Living?

EFL: What it is and who it’s for? Essential for Living (EFL)  is a function-based assessment and curriculum that continues to work on communication.  Essential for Living is written by Dr. Patrick McGreevy and Troy Fry. The Essential for Living book and app contain over 1000 skills that learners of different ages might need in order to […]

What is the VB-MAPP and who is it for?

Verbal Behavior Milestones Assessment & Placement Program (VB-MAPP) by Dr. Mark Sundberg is a developmental assessment and curriculum guide where a learner’s language and social skills are compared to a typically developing 0-4-year-old. The advantage of using this assessment is that not only is the assessor able to know how many words a learner is […]



In the world of autism education and therapy, the Verbal Behavior Milestones Assessment and Placement Program (VB-MAPP) is a cornerstone tool. Developed by Dr. Mark Sundberg, VB-MAPP has helped countless professionals assess and track the language, learning, and social skills of children with autism. However, with the rise of unauthorized VB-MAPP PDF(s) and excel sheets […]

Data Makes The Difference And More…

Welcome to Data Makes the Difference, a company dedicated to improving the lives of individuals with autism spectrum disorder (ASD) and other developmental disabilities through our innovative products and services. Our company is proud to offer two unique products – the VB-MAPP app and Essential For Living app – that have helped countless professionals and […]

Alternative Method Of Speaking Tool

AMS Selection Tool – A Revolutionary Way to Select an Alternative Method of Speaking For nonverbal individuals with autism or other developmental disabilities, finding an effective alternative method of speaking is crucial. The AMS Selection Tool, developed by Dr. Patrick McGreevy and Troy Fry, provides a revolutionary way to select an alternative, primary method of […]

The Importance Of The EFL “Necessary Ninth”: The Teaching Of Leisure Skills

When I used to program for learners, I focused on communication and either catching them up to their peers if they were VB-MAPP kiddos, or that all important communication and daily living skills/functional academics/tolerating if they were EFL kiddos.  Not bad things to focus on, for sure! However, when our Sarah left school at 21 […]