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Preliminary Rasch Construct and Reliability Validation of TeleWrite: A Telehealth-Based Handwriting Assessment
Julia M Guzmán1, Lenin C Grajo2
1Columbia University, New York, USA.
OTJR : Occupation, Participation and Health
|February 8, 2023
Summary
TeleWrite, a new telehealth tool for handwriting assessment, shows promise. It measures rate, accuracy, and fluency, demonstrating good validity but needing further refinement for accuracy measures in children.
Area of Science:
- Occupational Therapy
- Educational Psychology
- Human-Computer Interaction
Background:
- The rapid expansion of telehealth necessitates validated tools for remote occupational therapy assessments.
- TeleWrite is a novel tool designed to address this need for telehealth-based handwriting evaluations.
Purpose of the Study:
- To evaluate the initial psychometric properties of the TeleWrite tool using Rasch methodology.
- To determine the construct validity and reliability of TeleWrite for assessing handwriting skills in children.
Main Methods:
- Rasch analysis was employed to examine data from 148 first to third-grade children.
- Internal construct validity and test reliability were assessed to understand the tool's performance.
Main Results:
- TeleWrite demonstrated a good fit with the Rasch model, comprising three distinct constructs: rate, accuracy, and fluency.
- Acceptable fit indices (Infit/Outfit MNSQ) were observed. Person separation values were moderate for rate and fluency but indicated poor-fair reliability for accuracy, potentially due to sample limitations.
Conclusions:
- TeleWrite exhibits strong construct and internal validity, with a good fit to the Rasch model.
- The tool demonstrates moderate reliability in distinguishing student abilities in handwriting, particularly for rate and fluency, though accuracy measures require further development.
