459
Views
17
CrossRef citations to date
0
Altmetric
Original Articles

Cluster subtypes on the California Verbal Learning Test–Second Edition (CVLT–II) in a traumatic brain injury sample

&
Pages 953-960 | Received 29 Jun 2009, Accepted 06 Jan 2010, Published online: 19 Apr 2010
 

Abstract

Subtypes of learning and memory on the California Verbal Learning Test–Second Edition (CVLT–II; CitationDelis, Kramer, Kaplan, & Ober, 2000) were examined in a clinical sample of 223 persons with traumatic brain injury (TBI), screened to remove individuals with complicating premorbid (e.g., psychiatric) or comorbid (e.g., financial compensation-seeking) histories. The z scores from 4 key CVLT–II variables were entered into a two-stage cluster analysis. These variables were selected to represent 4 latent constructs, identified in a recent confirmatory factor analysis: List A1 (Attention Span), List A5 (Learning Efficiency), Long Delay Free Recall (Delayed Memory), and False Positives (Inaccurate Memory). Six reliable subtypes were found (similar to those in the standardization sample) that were differentiated by both level and pattern of performance, with differences in level of performance meaningfully related to length of coma. In conclusion, the impact of TBI on CVLT–II performance can be manifested in various patterns that are not specifically unique, but are affected by injury severity.

This research was supported by a grant from the Campbell Foundation.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.