Читать книгу Essentials of the California Verbal Learning Test - Thomas J. Farrer - Страница 23

Score	Ages 16–44 average test-retest r12	Ages 45–90 average test-retest r12
Trials 1–5 Correct (Standard score)	0.75	0.80
Trial 1 Correct	0.51	0.56
Trial 2 Correct	0.53	0.59
Trial 3 Correct	0.70	0.63
Trial 4 Correct	0.58	0.67
Trial 5 Correct	0.50	0.71
List B Correct	0.57	0.53
Short-Delay Free-Recall Correct	0.71	0.71
Short-Delay Cued-Recall Correct	0.56	0.69
Long-Delay Free-Recall Correct	0.61	0.71
Long-Delay Cued-Recall Correct	0.60	0.65
Delayed Recall Correct (Standard Score)	0.77	0.80
Total Recall Correct (Standard Score)	0.79	0.83
Total Intrusions	0.25	0.57
Yes/No Recognition Hits	0.49	0.62
Yes/No Recognition False Positives	0.57	0.55
Recognition Discrimination	0.67	0.54
Recognition Discrimination Nonparametric	0.65	0.58

Standardization data from the California Verbal Learning Test, Third Edition (CVLT3). Copyright © 2017 NCS Pearson, Inc. Used with permission. All rights reserved.

Effect sizes ranged from −0.09 to 0.06 across the index scores, from −0.11 to 0.11 across the recall scaled scores, from −0.15 to 0.06 across the recognition scaled scores, and from −0.18 to 0.29 across the error and process scaled scores, indicating small changes in performance across forms. Therefore, it is unlikely that performance will vary across the two forms greatly due to experience with the test. It is important to note that when the same form is administered, memory tests show practice effects (i.e., performance improvement related to prior experience with taking a test) for a long time after administration, with patients recalling information for months to years after administration (Goldberg, Harvey, Wesnes, Snyder, & Schneider, 2015).