Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

The Western Australia Olfactory Memory Test: Reliability and validity in a sample of older adults

Seneviratne, R., Weinborn, M., Badcock, D.R., Gavett, B.E., Laws, M., Taddei, K., Martins, R.N. and Sohrabi, H.R.ORCID: 0000-0001-8017-8682 (2022) The Western Australia Olfactory Memory Test: Reliability and validity in a sample of older adults. Archives of Clinical Neuropsychology .

Link to Published Version: https://doi.org/10.1093/arclin/acac048
*Subscription may be required

Abstract

Objective

The Western Australia Olfactory Memory Test (WAOMT) is a newly developed test designed to meet a need for a comprehensive measure of olfactory episodic memory (OEM) for clinical and research applications.

Method

This study aimed to establish the psychometric properties of the WAOMT in a sample of 209 community-dwelling older adults. An independent sample of 27 test-naïve participants were recruited to assess test retest reliability (between 7 and 28 days). Scale psychometric properties were examined using item response theory methods, combined samples (final N = 241). Convergent validity was assessed by comparing performance on the WAOMT with a comprehensive neuropsychological battery of domains (verbal and visual episodic memory, and odor identification), as well as other neuropsychological skills. Based on previous literature, it was predicted that the WAOMT would be positively correlated with conceptually similar cognitive domains.

Results

The WAOMT is a psychometrically sound test with adequate reliability properties and demonstrated convergent validity with tests of verbal and episodic memory and smell identification. Patterns of performance highlight learning and memory characteristics unique to OEM (e.g., learning curves, cued and free recall).

Conclusion

Clinical and research implications include streamlining future versions of the WAOMT to ease patient and administrative burden, and the potential to reliably detect early neuropathological changes in healthy older adults with nonimpaired OEM abilities.

Item Type: Journal Article
Murdoch Affiliation(s): Centre for Healthy Ageing
Publisher: Oxford University Press
Copyright: © 2022 The Authors.
URI: http://researchrepository.murdoch.edu.au/id/eprint/65669
Item Control Page Item Control Page