Preliminary Rasch Construct and Reliability Validation of TeleWrite: A Telehealth-Based Handwriting Assessment

OTJR (Thorofare N J). 2023 Jul;43(3):342-350. doi: 10.1177/15394492231151883. Epub 2023 Feb 8.

Abstract

Background: Telehealth is rapidly expanding, and telehealth-based occupational therapy assessments must be developed and validated to keep pace with this transition. TeleWrite aims to bridge this gap.

Objectives: To analyze the tool's initial psychometric properties using Rasch methods.

Method: Internal construct validity and test reliability were analyzed using data from 148 children from first to third grade.

Results: Rasch analysis helped to identify that TeleWrite is composed of three separate constructs for rate, accuracy, and fluency. All Infit/Outfit mean square (MNSQ) values fell within acceptable ranges of 0.5 to 1.7 logits. Separation analysis indicated lower but acceptable person separation values for rate (0.68-0.76) and fluency (0.61-0.73), but accuracy scales were in the poor-fair range (0.20-0.60), given sample limitations.

Conclusion: TeleWrite is comprised of three separate constructs, showed a good fit with the Rasch model, indicated strong construct and internal validity, and moderate ability to reliably separate abilities of students in terms of handwriting skills.

Keywords: Rasch analysis; assessment; handwriting; pediatrics.

MeSH terms

  • Child
  • Handwriting*
  • Humans
  • Psychometrics
  • Reproducibility of Results
  • Surveys and Questionnaires
  • Telemedicine*