Responsiveness and predictive validity of the computerized digit vigilance test in patients with stroke

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Updated: Feb 8, 2026

Computerized Adaptive Testing System of Functional Assessment of Stroke
05:21

Computerized Adaptive Testing System of Functional Assessment of Stroke

Published on: January 7, 2019

6.3K

Sheau-Ling Huang1,2, Tzu-Ting Chen1, Gong-Hong Lin1

  • 1School of Occupational Therapy, College of Medicine, National Taiwan University , Taipei , Taiwan.

Disability and Rehabilitation
|June 30, 2018
PubMed

Insights

The computerized digit vigilance test (C-DVT) effectively measures sustained attention changes and predicts daily function in stroke rehabilitation patients. This tool demonstrates adequate responsiveness and predictive validity for assessing recovery post-stroke.

Area of Science:

  • Neuroscience
  • Rehabilitation Medicine
  • Psychometrics

Background:

  • Stroke rehabilitation requires reliable outcome measures for sustained attention and functional recovery.
  • The computerized digit vigilance test (C-DVT) is a tool to assess sustained attention.
  • Evaluating the C-DVT's responsiveness and predictive validity in stroke patients is crucial.

Purpose of the Study:

  • To assess the responsiveness of the C-DVT in detecting changes in sustained attention during stroke rehabilitation.
  • To determine the predictive validity of the C-DVT for functional outcomes in stroke survivors.
  • To validate the C-DVT as an outcome measure in inpatient stroke rehabilitation settings.

Main Methods:

  • Forty-nine inpatients undergoing stroke rehabilitation completed the C-DVT and Barthel Index (BI) at admission and discharge.
  • Responsiveness was evaluated using the standardized response mean (SRM) and paired t-tests.
  • Predictive validity was assessed by correlating C-DVT admission scores with BI discharge scores using Pearson correlation (r).

Main Results:

  • The C-DVT showed adequate responsiveness with a small SRM (-0.31) and statistically significant changes (p=0.034) between admission and discharge.
  • A moderate correlation (r=0.48) was found between C-DVT admission scores and BI discharge scores, indicating sufficient predictive validity.
  • These results suggest the C-DVT can effectively track improvements in sustained attention and predict functional gains.

Conclusions:

  • The computerized digit vigilance test (C-DVT) demonstrates adequate responsiveness for measuring sustained attention changes in stroke rehabilitation.
  • The C-DVT possesses sufficient predictive validity to forecast daily functional abilities in patients recovering from stroke.
  • The C-DVT is a valuable outcome measure for assessing sustained attention and predicting functional recovery in stroke rehabilitation.

Keywords:
Strokeattentionresponsivenessvalidity

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