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Social Processes: Methodology · Types of test

The Dot cancellation test or Bourdon-Wiersma test is a commonly used performance test of combined visual perception and vigilance.[1][2]

The test has been used in the evaluation of stroke where subjects were instructed to cross out all groups of 4 dots on an A4 paper. The numbers of uncrossed groups of 4 dots, groups of dots other than 4 crossed, and the time spent (maximum, 15 minutes) were taken into account.[2] The Group-Bourdon test, a modification of the Bourdon-Wiersma, is one of a number of psychometric tests which trainee train drivers in the UK are required to pass.[3][4]


  1. Laursen, Peter Functions and Parameterization. Cognitive Function Scanner. URL accessed on 1 March 2011.
  2. 2.0 2.1 Akinwuntan AE, De Weerdt W, Feys H, Baten G, Arno P, Kiekens C (March 2005). The validity of a road test after stroke. Arch Phys Med Rehabil 86 (3): 421–6.
  3. Group-Bourdon tool. Digital Reality. URL accessed on 2 March 2011.
  4. Nijenhuis, J, Vanderflier, H (19 July 2002). The correlation of g with attentional and perceptual-motor ability tests. Personality and Individual Differences 33 (2): 287–297.

Further readingEdit

Grewel, F (October 1953). The Bourdon-Wiersma test.. Folia psychiatrica, neurologica et neurochirurgica Neerlandica 56 (5): 694–703.

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