Journal article
Evaluation of a skin self examination attitude scale using an item response theory model approach
Health and Quality of Life Outcomes, Vol.12(1), 189
2014
Abstract
Introduction: The Skin Self-Examination Attitude Scale (SSEAS) is a brief measure that allows for the assessment of attitudes in relation to skin self-examination. This study evaluated the psychometric properties of the SSEAS using Item Response Theory (IRT) methods in a large sample of men ≥50 years in Queensland, Australia. Methods: A sample of 831 men (420 intervention and 411 control) completed a telephone assessment at the 13-month follow-up of a randomized-controlled trial of a video-based intervention to improve skin self-examination (SSE) behaviour. Descriptive statistics (mean, standard deviation, item-total correlations, and Cronbach's alpha) were compiled and difficulty parameters were computed with Winsteps using the polytomous Rasch Rating Scale Model (RRSM). An item person (Wright) map of the SSEAS was examined for content coverage and item targeting. Results: The SSEAS have good psychometric properties including good internal consistency (Cronbach's alpha = 0.80), fit with the model and no evidence for differential item functioning (DIF) due to experimental trial grouping was detected. Conclusions: The present study confirms the SSEA scale as a brief, useful and reliable tool for assessing attitudes towards skin self-examination in a population of men 50 years or older in Queensland, Australia. The 8-item scale shows unidimensionality, allowing levels of SSE attitude, and the item difficulties, to be ranked on a single continuous scale. In terms of clinical practice, it is very important to assess skin cancer self-examination attitude to identify people who may need a more extensive intervention to allow early detection of skin cancer. © Djaja et al.
Details
- Title
- Evaluation of a skin self examination attitude scale using an item response theory model approach
- Authors
- N Djaja (Author) - Queensland University of TechnologyPhilippa H Youl (Author) - Queensland University of TechnologyJ Aitken (Author) - Queensland University of TechnologyM Janda (Author) - Queensland University of Technology
- Publication details
- Health and Quality of Life Outcomes, Vol.12(1), 189; 7
- Publisher
- BioMed Central Ltd.
- Date published
- 2014
- DOI
- 10.1186/s12955-014-0189-x
- ISSN
- 1477-7525
- Copyright note
- Copyright © 2014 Djaja et al.; licensee BioMed Central. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
- Organisation Unit
- University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
- Language
- English
- Record Identifier
- 99451291702621
- Output Type
- Journal article
Metrics
37 File views/ downloads
324 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- Web Of Science research areas
- Health Care Sciences & Services
- Health Policy & Services
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites