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Digit Vigilance Test

Ronald F. Lewis, PhD

Assesses attention during rapid visual tracking
Paper and pencil
Age range:
20 years to 80 years
10 minutes
Qualification level:
All qualifications for Level B plus an advanced professional degree that provides appropriate training in the administration and interpretation of psychological tests, or license or certification from an agency that requires appropriate training and experience in the ethical and competent use of psychological tests. Close

The DVT is a simple task designed to measure vigilance during rapid visual tracking and accurate selection of target stimuli. It focuses on alertness and vigilance while placing minimal demands on two other components of attention: selectivity and capacity.

Features and benefits

  • Respondents are asked to find and cross out either sixes or nines, which appear randomly within 59 rows of single digits on two separate pages.
  • Allows you to readminister with minimal practice effects.
  • Administration and scoring can be accomplished by individuals with no formal training under the supervision of a qualified psychologist. Interpretation requires training in clinical psychology or neuropsychology.

Note: Normative data are not provided in the Professional User’s guide, but are presented in the Revised Comprehensive Norms for an Expanded Halstead-Reitan Battery. Stopwatch required.


A comprehensive list of research articles related to the DVT is available via Mendeley, a free reference management tool. After accessing the link, you will be prompted to create an account. A white paper describing how to use this research repository can be found here. Use of this resource is encouraged to facilitate research using the DVT. Both the list and the white paper are available in the Resources tab above.