Journal article
Psychometric Properties of the Dental Activities Test: An Exploratory Factor Analysis in Older Adults with Cognitive Impairment
Behavioural neurology, Vol.2018, pp.8625916-6
01/01/2018
DOI: 10.1155/2018/8625916
PMCID: PMC6311855
PMID: 30651893
Abstract
Objective. The Dental Activities Test (DAT) was developed to be used by dental, nursing, and other health professionals to assess the ability of persons with dementia to perform oral health-related activities and aid care planning. The instrument was designed as a unitary scale and has excellent internal consistency, test-retest reliability, interrater reliability, and construct validity. This study examines the underlying factor structure of the DAT among older adults in assisted living settings. Methods. In a secondary analysis of the data from the original study, the results of testing of 90 older adults with normal to severely impaired cognition from three assisted living communities in North Carolina from March 2013 to February 2014 were studied. An exploratory factor analysis was used to assess the dimensionality of the presumed unitary assessment scale. Results. Two-factor structures were explored. A one-factor model demonstrated acceptably mixed model fit, and a two-factor model had good model fit with moderate correlation between the two factors (r=0.667, p<0.05). All the items in the one-factor model demonstrated significant factor loadings (loadings0.39, all p<0.05), while the loadings of some items in the two-factor model (nonsignificant or cross-loadings, loadings<0.40) did not meet the criteria of factor selection. The one-factor structure was preferred based on the criteria of Scree Plot, eigenvalue, and factor interpretability in relation to clinical relevance. Conclusions. The study provided preliminary evidence that the Dental Activities Test has a unidimensional construct among older adults with cognitive impairment. It suggested that this instrument can be used as a unitary scale to assess dental-related function in persons with dementia. Future testing, including using a confirmatory factor analysis, in a new sample is needed to further assess the usefulness and psychometric properties of this instrument.
Details
- Title: Subtitle
- Psychometric Properties of the Dental Activities Test: An Exploratory Factor Analysis in Older Adults with Cognitive Impairment
- Creators
- Xi Chen - University of IowaWen Liu - Univ Iowa, Coll Nursing, Iowa City, IA 52242 USA
- Resource Type
- Journal article
- Publication Details
- Behavioural neurology, Vol.2018, pp.8625916-6
- DOI
- 10.1155/2018/8625916
- PMID
- 30651893
- PMCID
- PMC6311855
- NLM abbreviation
- Behav Neurol
- ISSN
- 0953-4180
- eISSN
- 1875-8584
- Publisher
- Hindawi Publishing Group
- Number of pages
- 6
- Grant note
- K23DE022470 / National Institute of Dental and Craniofacial Research; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Dental & Craniofacial Research (NIDCR)
- Language
- English
- Date published
- 01/01/2018
- Academic Unit
- Preventive and Community Dentistry; Nursing
- Record Identifier
- 9984367728102771
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