Читать книгу Essentials of the California Verbal Learning Test - Thomas J. Farrer - Страница 13

The CVLT3 is the most recent revision to the CVLT. The revision was guided by the need for updated normative data, feedback from users and reviewers of the CVLT-II (both personal and published), and research utilizing the CVLT-II. In terms of content, the administration instructions and word lists were not modified but remain the same as in the CVLT-II. However, a few items on the forced-choice recognition trial were modified to increase sensitivity as a measure of performance validity. The alternate and short forms were also retained with similar modifications made to the forced-choice recognition trial.

The CVLT3 addressed many needs identified in the research literature and customer feedback. Revisions made in the CVLT3 included:

 updated norms for ages 16–90, using a nationally stratified sample matched to the U.S. population;

 application of a scaled score metric (mean = 10, SD = 3) over the T score and z-score metric to allow easier comparison to other measures;

 introduction of index scores (mean = 100, SD = 15) on the key memory and learning scores (Trials 1–5, total delayed recall, total recall);

 updated intrusion measures to reflect different types of memory errors;

 digital administration, recording, and scoring; and

 provision of demographic adjustments to age-adjusted scores for education and sex presented as T scores in the scoring software.

Detailed information on the modifications and improvements to the content, psychometric properties, and clinical utility of the CVLT3 are described in the CVLT3 Manual. An overview of the changes is provided in Rapid Reference 1.4.