Psychological Processing Analyzer 11.9
Pattern of Strengths and Weaknesses (PSW) Assessment
Created by: Milton J. Dehn and Charles Szasz
Published by: Schoolhouse Educational Services
Qualification Level B
Important! Psychological Processing Analyzer 11.9 Updated 1/2026
| Qualification Level: | B | Click For Qualification Level Information |
Description
The Psychological Processing Analyzer (PPA) is software designed to identify the Pattern of Strengths and Weaknesses (PSW) in achievement and psychological (cognitive) processes.
- Ideal for identifying the Pattern of Strengths and Weaknesses (PSW) when conducting Specific Learning Disability (SLD) evaluations
- For use with selective, multi-battery testing of psychological (cognitive) processes and achievement
- Statistically analyzes scores from more than 120 different assessment batteries
- Analyzes strengths and weaknesses across 14 psychological (cognitive) processes
- Analyzes strengths and weaknesses across 8 SLD achievement areas
Features and Benefits
- User-friendly and easy to learn
- Data/test score entry is quick and easy
- Works on both Windows and Mac operating systems
- Uses scroll down menus to select entries
- Conducts a PSW within achievement, in addition to the cognitive PSW analysis
- Identifies achievement scores that are consistent with specific cognitive weaknesses
- Includes a report with a narrative, graphs, tables, observations, and recommendations for weaknesses
- Allows unlisted composites and subtests to be entered
- Allows either a cognitive ability composite or multi-battery mean to be used as the predictor
- Displays reliability coefficients for every composite and subtest
- Identifies both intra-individual and normative weaknesses
- Based on PSW analysis results, recommends potential SLD’s
- Allows score entries from standardized, norm-referenced rating scales
- Has built-in classroom observations
- Incorporates CHC abilities, but also neuropsychological abilities not included in CHC
- Provides summary strengths and weaknesses tables and charts
- Offers cost-effective district/site licenses with unlimited users and uses
- Software is updated annually
- Based on the model in the Essentials of Processing Assessment, 3rd Edition book
SLD Achievement Areas Included
- Basic Reading Skills
- Listening Comprehension
- Math Calculation
- Math Problem Solving
- Oral Expression
- Reading Fluency
- Reading Comprehension
- Written Expression
Description, Features and Benefits updated January 2026
The PPA is not compatible with Chromebooks.
Psychological Processing Analyzer Resources
Suggested Reading
Essentials of Processing Assessment, 3rd. Ed. by Milton J. Dehn
Related PPA Webinar – Using PSW to Determine SLD – Webinar
Format: Recorded Webinar
Presenter: Dr. Milton Dehn
The focus of this workshop is on PSW assessment procedures, with an emphasis on Dehn’s PSW model.
Using PSW to Determine SLD – Webinar
Related PPA Webinar – Update on PSW and the PPA
Format: Recorded Webinar
Presenter: Dr. Milton Dehn
This session discusses what PSW models have in common and the latest trends in using PSW.
Update on PSW and the PPA NASP CEUS Available
Psychological Processing Analyzer 5 Year Multi-Use Licensing Available!
Schoolhouse Educational Services, Inc. offers a prepaid, 5 year site license for both school and non school use.
Please visit our PPA Multi-License page for more information!
Pricing For Psychological Processing Analyzer 11.9
Individual License that includes download, manual, and free updates for two years
