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May 6, 2026AutismOpen Access

Participatory Development and Psychometric Evaluation of the Introspective Predictive Processing Inventory: A Self-Report Measure for Autistic and Non-Autistic Adults

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Authors

MRMarik RoosHSHannah StormLZLucie Zimmer

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Overview

Psychometric evaluation of the Introspective Predictive Processing Inventory shows high validity and reliability for assessing autistic experiences, suggesting improvements for quality of life.

Key Points

  • To develop and evaluate the Introspective Predictive Processing Inventory for measuring predictive processing in autistic and non-autistic adults.
  • Participatory development involving autistic community members and researchers
  • Network-based item optimization and psychometric testing with 790 participants
  • Exploratory and confirmatory factor analyses, along with measurement invariance testing
  • Assessment of convergent and discriminative validity of the final inventory
  • The final inventory consists of 18 items maintaining high reliability
  • Demonstrated discriminative validity with an area under the curve >0.97
  • Strong convergent validity with established measures
  • Measurement invariance across groups and independence from cognitive abilities

Cite This Study

Roos et al. (2026) studied this question.

synapsesocial.com/papers/69fa97ce04f884e66b531980https://doi.org/10.1177/13623613261443728
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