Protocol - Working Memory - Adult
Digit Span is an interviewer-administered test that is part of the Wechsler Adult Intelligence Scale®, Fourth Edition (WAIS®-IV). The examiner reads the respondent a series of number sequences and then asks the respondent to repeat the numbers back in forward and in reverse order. The protocol also includes detailed scoring instructions.
The Digit Span Test contains two portions. In the first portion, Digit Span (Forward), the examiner reads the respondent 14 number sequences that range from 3 to 9 digits in length one at a time and then asks the respondent to repeat the sequence in the same order.
In the second portion, Digit Span (Backward), the examiner reads the respondent 14 different number sequences that range from 3 to 8 digits in length one at a time and then asks the respondent to repeat the sequence in reverse order.
Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV). Copyright © 2008 NCS Pearson, Inc. All rights reserved.
Wechsler Adult Intelligence Scale® and WAIS®-IV are registered trademarks of NCS Pearson, Inc.
Protocol Name from Source:
Digit Span Subtest of the Wechsler Adult Intelligence Scale®, Fourth Edition (WAIS®-IV).
Personnel and Training Required
Personnel should be trained by a licensed neuropsychologist or other trained medical professional experienced with the Digit Span Test. Additionally, investigators are encouraged to have quality control procedures (such as videotaping sessions, etc.) in place to maintain consistency across examiners.
The interviewer will need a copy of the test that includes the cue cards with the sequence of digits and the scoring instructions.
|Specialized requirements for biospecimen collection||No|
|Average time of greater than 15 minutes in an unaffected individual||No|
Mode of Administration
Adolescent, Adult, Senior
Individuals aged 16-90 years old.
Digit Span is a proprietary subtest of the Wechsler Adult Intelligence Scale®, Fourth Edition (WAIS®-IV). Each WAIS-IV subtest is a part of a complete WAIS-IV assessment and is not sold separately. To administer a subtest requires a licensing agreement from Pearson. Researchers should complete and return an application to firstname.lastname@example.org. The current fee for each subtest use is $1.25 each-subject to a minimum license fee.
The Digit Span Test was selected because it is a widely used, validated protocol that requires less time to administer than similar instruments.
|Common Data Elements (CDE)||Neurology Working Memory Assessment Score||3076192||CDE Browser|
|Logical Observation Identifiers Names and Codes (LOINC)||Working memory proto||62776-0||LOINC|
Process and Review
Expert Review Panel 4 (ERP 4) reviewed the measures in the Neurology, Psychiatric, and Psychosocial domains.
Guidance from ERP 4 included the following:
· No changes
David Wechsler. The Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV). Pearson Education, Inc. 2008.
The Wechsler Adult Intelligence Scale®, Fourth Edition (WAIS®-IV) is a proprietary instrument and can be obtained through:
Attn: Customer Service
P.O. Box 599700
San Antonio, TX 78259
Benson, N., Hulac, D., & Kranzler, J. (2010). Independent examination of the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV): What does the WAIS-IV measure? Psychological Assessment, 22(1), 121-130.
Canivez, G. L. & Watkins, M. (2010). Investigation of the factor structure of the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV): Exploratory and higher order factor analyses. Psychological Assessment, 22(4), 827-836.
Lichtenberger, E. O., & Kaufman, A. S. (2009). Essentials of WAIS-IV assessment. Hoboken, NJ: John Wiley.
|Variable Name||Variable ID||Variable Description||Version||dbGaP Mapping|
|PX131001000000||Protocol 131001 - proprietary. Check DCW for contact.||4||N/A|
May 12, 2010
An interviewer-administered test that measures the ability of the respondent to process and retrieve information associated with short-term memory.
This measure tests a respondent’s total range of function with respect to working memory. It is therefore more specific and sensitive than a measure of global mental status and can be used to assess major problems in working memory as well as minor variations that may be a consequence of normal development and aging.
Neurology, sickle cell disease, SCD, cognition, dementia, Alzheimer’s disease, aging, proprietary