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Autism Spectrum Disorder

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The Knowledge of Autism Questionnaire-UK: Development and Initial Psychometric Evaluation.

Sophie Langhorne¹, Nora Uglik-Marucha², Charlotte Broadhurst¹

¹Division of Psychology and Mental Health, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.

Journal of Autism and Developmental Disorders

|May 2, 2024

Summary

A new autism knowledge questionnaire, the KAQ-UK, was developed for the UK context. This validated tool measures understanding of autism and can track changes over time.

Keywords:

Autism Knowledge Measurement Questionnaire Understanding

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Area of Science:

Psychology
Psychometrics
Neurodevelopmental Disorders

Background:

Effective tools are needed to measure autism knowledge and assess the impact of awareness initiatives.
Existing measures lack psychometric validation for the UK context.

Purpose of the Study:

To develop and validate a brief questionnaire assessing contemporary autism knowledge in the UK.
The measure aims to capture between-respondent variability and within-respondent changes over time.

Main Methods:

Item generation and refinement through expert and lay input.
Item response theory and exploratory factor analysis for validation.
Validation data collected from 201 lay participants.

Main Results:

A 14-item questionnaire, the Knowledge of Autism Questionnaire-UK (KAQ-UK), was finalized.
The KAQ-UK demonstrated satisfactory internal consistency and a one-factor structure.
The questionnaire successfully differentiated between parents of autistic individuals and those without an autism affiliation.

Conclusions:

The KAQ-UK is a new, freely available measure for assessing autism knowledge in the UK.
It can be used to evaluate understanding across different groups and track changes post-intervention.
Further validation studies are recommended to fully establish its measurement properties.