Patrick McGreevy, Ph.D., P.A. and Associates

We are Board Certified Behavior Analysts with over 30 years of experience with children and adults of all ages with developmental disabilities. Our associates are Board Certified Behavior Analysts and Speech-Language Pathologists with extensive training and experience.

Our teaching is based on Applied Behavior Analysis (ABA), including B. F. Skinner's analysis of verbal behavior.

We provide on-site consultation and training to school districts, center schools, private schools, group homes, residential programs, hospital programs, and families. If you are interested in a consultation, click here or scroll up and click on 'Request a Consultation'.

We have recently published
Essential for Living, a Functional Skills Curriculum, Assessment, and Professional Practitioner's Handbook for Children and Adults with Moderate-to-severe disabilities. We are currently conducting introductory workshops on using Essential for Living and follow-up intensive training workshops, which help teachers, behavior analysts, and speech-language pathologists improve the effectiveness and efficiency of their teaching. If you are interested in an introductory or intensive workshop, click here to contact Troy Fry or scroll up and click on 'Bring an EFL Workshop to Your Community'.

Patrick McGreevy, Ph.D., BCBA-D
Troy Fry, M.A., BCBA
Colleen Cornwall, Ed.D., BCBA-D

If you are working with children or adults with moderate-to-severe disabilities, including, but not limited to, autism, who...
...exhibit one or more PROBLEM BEHAVIORS, but do not exhibit THE ESSENTIAL 8 SKILLS:






...and that is sensitive to very small increments of learner progress...

...AND you need a comprehensive, practitioner's manual that will help you develop IEPs and ISPs, guide instruction, and manage problem behavior,

You should have...'Essential for Living'.

Essential for Living
'Essential for Living' is a Communication, Behavior, and Functional Skills Curriculum, Assessment, and Professional Practitioner's Handbook for CHILDREN and ADULTS with moderate-to-severe disabilities, including autism.

'Essential for Living' is based on concepts, principles, and empirically-validated procedures from Applied Behavior Analysis (ABA) and from B. F. Skinner's analysis of verbal behavior, but it requires no previous knowledge or experience with ABA or verbal behavior. It can be used in conjunction with other curriculums, including The VB-MAPP, PECS, The ABLLS-R, The Lovaas Curriculum, A Work in Progress, The Early Start Denver Model, The ACE Curriculum, The Murdoch Center Program Library, and The MOVE Curriculum.

'Essential for Living' is the most
innovative and comprehensive
Curriculum and Assessment
of Functional Living Skills
for children and adults
with moderate-to-severe disabilities
and Professional Practitioner's Handbook
on the market today!
We invite you to compare 'Essential for Living' with other functional skills assessments and curriculums. In addition to daily living, vocational, social, leisure, and functional academic skills, 'Essential for Living' also includes:

(1) the Essential 8 Skills,
(2) an extensive array of expressive and receptive language skills,
(3) domains on tolerating skills and problem behavior,
(4) a section on 'How to Select an Alternative Method of Speaking for Non-verbal Children and Adults',
(5) scoring criteria that permit staff to document small increments of learner progress, and
(6) a comprehensive, Professional Practitioner's Handbook!

For a complete description of Essential for Living, click here. To order Essential for Living, click here or scroll down and click on the picture of the instrument or the text just below it. To 'get started' with Essential for Living, click here.

Essential for Living

A Communication, Behavior, and Functional Skills
Curriculum, Assessment,
Professional Practitioner's Handbook

'More than a list of skills,
It's when and how you teach those skills'

functional skills assessment

‘Order Essential for Living
using a credit card or purchase order’

Scroll down for the Latest News
regarding Workshops and other Events

Join the Speaker Initiative

On October 1, 2013, we launched the 'Essential for Living' Speaker Initiative. For more information on this important initiative, click here or scroll up and click on 'Join the Speaker Initiative'. Our first two new speakers are Chloe Peters and Tre Bowen. Join this Initiative and let us hear about your new speaker!!

Meet our second new speaker: Robert "Tre" Bowen, a 10-year-boy who attends the Behavior Analysis Center for Autism in Indianapolis, IN. Until recently, he could not function as a speaker. Now he uses three signs to make requests. His first sign was for 'candy' -- surprise, surprise! Congratulations to Katie Pollom, his behavior analyst, Todd Glowacki, one of his therapists, and the staff of BACA, along with his mother, Robin, his father, his grandparents, and the remainder of his family. Well done, everyone!

Meet the very first NEW SPEAKER to become part of our Speaker Initiative: Chloe Peters.

Chloe is an 11-year-old girl who attends Glen Lake Elementary School in the Hopkins Public Schools in Minnetonka, MN. She recently began to use 'spoken words' to make requests, rather than repeating what others say (echolalia). She became a speaker with the assistance of her teacher, Sher Unruh-Friesen, and her speech-language pathologist, Marie Menick. They used a very specific teaching procedure -- the echoic-to-request transfer procedure -- described in Essential for Living. Congratulations, Chloe!

The Latest News

A Very Special Master's Series Workshop: April 11 and 12, 2014

The ninth annual Master’s Series workshop will be held at the Rosen Centre in Orlando on April 11 and 12. We have an exciting line-up of speakers and topics:
Dr. James Johnston…    Radical Behaviorism for ABA Practitioners
Dr. Tim Vollmer…           The University of Florida Behavior Analysis Research Clinic
Dr. Rick Kubina…           Adding Behavioral Fluency to Intervention Plans
For more information or to register, scroll up to ‘Upcoming Workshops and Trainings’. Remember, as always, BACB CEUs are available at no extra charge. There is still plenty of time to register. In fact, you can register up to and including the day of the workshop!
There are still a few sleeping rooms available at the Rosen Plaza, which is just up the street from the Rosen Centre. Use the same reservations number: 800-204-7234. 

A Workshop on Essential for Living in Hershey, PA: May 28-29, 2014

We will be conducting a workshop on Essential for Living on May 28 and 29, 2014 in Hershey, PA. This workshop is sponsored by the Derry Township School District and ABA Beginnings. For more information or to register, scroll up and click on ‘Upcoming Workshops and Trainings’.

More Essential for Living Workshops are on the way…

Additional Essential for Living workshops will soon be announced for New York/New Jersey, Texas, Georgia, and other locations. Stay tuned!

The Passing of a Very Special Colleague and Friend

On March 29, a most valued colleague and friend, Rob Satterfield, passed away. He was a very competent behavior analyst and a kind, gentle, and caring man. We will miss him.

A Special Workshop in London: April 25 and 26, 2014

We will be conducting a special workshop in London on April 25 and 26:
Lifelong Planning and Learning for Children and Adults
with Mild-to-Severe Disabilities, Including Autism:
The VB-MAPP and Essential for Living
For more information or to register, scroll up to ‘Upcoming Workshops and Trainings’. Remember, as always, BACB CEUs are available at no extra charge. There is still plenty of time to register for this workshop!

A Rescheduled Workshop on “Essential for Living” in Roanoke, VA: May 5-6, 2014

Because of inclement weather, only a few people were able to attend the Essential for Living workshop that was scheduled in Roanoke, VA on March 17 and 18, 2014.
This workshop, which is being sponsored by Blue Ridge Autism and Achievement Center, has been rescheduled for May 5-6. It will be held in the same location in Roanoke.
If you registered for this workshop and plan to attend on the May 5 and 6, you are set-to-go. If you cannot attend and wish a refund, please let us know. If you would like to register, scroll up and click on ‘Upcoming Workshops and Trainings’. There are plenty of seats available.

Distributors of Essential for Living

There are two additional distributors of ‘Essential for Living’:
Behavior Development Solutions, a trusted and reliable developer and distributor of high quality products and services for the education and behavior analysis communities.

Kate Wolff, a trusted and reliable distributor in the UK. Orders from the UK, France, and Spain will often be delivered more rapidly and with reduced shipping charges.
To order materials: 
To contact Kate:

Data sheets are here…

Probe data sheets suitable for use with Essential for Living are now available. Additional data sheets are also being prepared.
Access these probe data sheets by clicking on ‘Data Sheets and Other Downloads’.

Replacing a Method of Speaking Selection Diagram that has been damaged

It has been brought to our attention that some people have used a dry erase marker on the Method of Speaking Selection Diagram (the mylar, aka, the transparency) and found that if you rub hard to remove the color, some of the black print also comes off. If you have had this experience, scroll up to Data Sheets and Other Downloads, download a printed copy of The Selection Diagram, and follow the printed instructions to replace this diagram. Or, contact us, and we will send you a replacement.

If you have not used your diagram yet, please use a washable marker or what is often called a wet erase marker. After you are finished making a selection, hold the diagram under cool water and gently dry with a paper towel.