Performance validity of the Dot Counting Test in a dementia clinic setting.
Saved in:
| Title: | Performance validity of the Dot Counting Test in a dementia clinic setting. |
|---|---|
| Authors: | Monjazeb, Sanam (AUTHOR), Crowell, Timothy A. (AUTHOR) |
| Source: | Applied Neuropsychology: Adult. May/Jun2025, Vol. 32 Issue 3, p719-729. 11p. |
| Subjects: | Neurobehavioral disorders, Test validity, Neuropsychological tests, Cognition disorders, Older people |
| Abstract: | Objective: This study examined the utility of a performance validity test (PVT), the Dot Counting Test (DCT), in individuals undergoing neuropsychological evaluations for dementia. We investigated specificity rates of the DCT Effort Index score (E-Score) and various individual DCT scores (based on completion time/errors) to further establish appropriate cutoff scores. Method: This cross-sectional study included 56 non-litigating, validly performing older adults with no/minimal, mild, or major cognitive impairment. Cutoffs associated with ≥90% specificity were established for 7 DCT scoring methods across impairment severity subgroups. Results: Performance on 5 of 7 DCT scoring methods significantly differed based on impairment severity. Overall, more severely impaired participants had significantly higher E-Scores and longer completion times but demonstrated comparable errors to their less impaired counterparts. Contrary to the previously established E-Score cutoff of ≥17, a cutoff of ≥22 was required to maintain adequate specificity in our total sample, with significantly higher adjustments required in the Mild and Major Neurocognitive Disorder subgroups (≥27 and ≥40, respectively). A cutoff of >3 errors achieved adequate specificity in our sample, suggesting that error scores may produce lower false positive rates than E-Scores and completion time scores, both of which overemphasize speed and could inadvertently penalize more severely impaired individuals. Conclusions: In a dementia clinic setting, error scores on the DCT may have greater utility in detecting non-credible performance than E-Scores and completion time scores, particularly among more severely impaired individuals. Future research should establish and cross-validate the sensitivity and specificity of the DCT for assessing performance validity. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Neuropsychology: Adult is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 184106390 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Performance validity of the Dot Counting Test in a dementia clinic setting. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Monjazeb%2C+Sanam%22">Monjazeb, Sanam</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Crowell%2C+Timothy+A%2E%22">Crowell, Timothy A.</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Neuropsychology%3A+Adult%22">Applied Neuropsychology: Adult</searchLink>. May/Jun2025, Vol. 32 Issue 3, p719-729. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Neurobehavioral+disorders%22">Neurobehavioral disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Test+validity%22">Test validity</searchLink><br /><searchLink fieldCode="DE" term="%22Neuropsychological+tests%22">Neuropsychological tests</searchLink><br /><searchLink fieldCode="DE" term="%22Cognition+disorders%22">Cognition disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Older+people%22">Older people</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Objective: This study examined the utility of a performance validity test (PVT), the Dot Counting Test (DCT), in individuals undergoing neuropsychological evaluations for dementia. We investigated specificity rates of the DCT Effort Index score (E-Score) and various individual DCT scores (based on completion time/errors) to further establish appropriate cutoff scores. Method: This cross-sectional study included 56 non-litigating, validly performing older adults with no/minimal, mild, or major cognitive impairment. Cutoffs associated with ≥90% specificity were established for 7 DCT scoring methods across impairment severity subgroups. Results: Performance on 5 of 7 DCT scoring methods significantly differed based on impairment severity. Overall, more severely impaired participants had significantly higher E-Scores and longer completion times but demonstrated comparable errors to their less impaired counterparts. Contrary to the previously established E-Score cutoff of ≥17, a cutoff of ≥22 was required to maintain adequate specificity in our total sample, with significantly higher adjustments required in the Mild and Major Neurocognitive Disorder subgroups (≥27 and ≥40, respectively). A cutoff of >3 errors achieved adequate specificity in our sample, suggesting that error scores may produce lower false positive rates than E-Scores and completion time scores, both of which overemphasize speed and could inadvertently penalize more severely impaired individuals. Conclusions: In a dementia clinic setting, error scores on the DCT may have greater utility in detecting non-credible performance than E-Scores and completion time scores, particularly among more severely impaired individuals. Future research should establish and cross-validate the sensitivity and specificity of the DCT for assessing performance validity. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Neuropsychology: Adult is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=184106390 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/23279095.2023.2207125 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 719 Subjects: – SubjectFull: Neurobehavioral disorders Type: general – SubjectFull: Test validity Type: general – SubjectFull: Neuropsychological tests Type: general – SubjectFull: Cognition disorders Type: general – SubjectFull: Older people Type: general Titles: – TitleFull: Performance validity of the Dot Counting Test in a dementia clinic setting. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Monjazeb, Sanam – PersonEntity: Name: NameFull: Crowell, Timothy A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May/Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 23279095 Numbering: – Type: volume Value: 32 – Type: issue Value: 3 Titles: – TitleFull: Applied Neuropsychology: Adult Type: main |
| ResultId | 1 |
