Client Assessment

WebABLLS is the electronic version of the ABLLS-R with convenient features and functions available only in this web-based platform. WebABLLS is designed for use with learners on the autism spectrum, language delays, or other developmental disabilities. When implemented in conjunction with comprehensive programming, learners acquire the ability to learn from their everyday experiences while educators, parents, and professionals are empowered to share data and strategies that enhance collaboration across all learning environments.


This assessment can be used by educators, clinicians, and parents to facilitate the identification of skills needed by their learners to communicate effectively and learn from everyday experiences. Using the assessment the user is able to develop a comprehensive, custom, language-based curriculum. Throughout the learner’s program, the periodic assessment updates provide a platform to measure progress and determine subsequent priorities to ensure continual development and progress.

There are three assessment edit modes – select the one that works for you:

Text Mode resembles the print version of the ABLLS-R® Protocol
Grid Mode resembles the skills tracking grids of the Protocol
Cat Mode (short for category) is another format offered to accommodate scoring from a smaller screen, tablet, or smart phone by displaying individual categories of the assessment in the grid style

The criterion-referenced assessment within WebABLLS provides a comprehensive review of 544 skills from 25 skill areas including language, social interaction, self-help, academic, and motor skills. The task items within each skill area are arranged from simpler to more complex tasks. Expressive language skills are assessed based on the behavioral analysis of language as presented by Dr. B.F. Skinner in his book, Verbal Behavior (1957).