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Indepth: Watson-Glaser Unsupervised and Supervised

THE global measure of critical-thinking ability

An indepth guide to Watson-Glaser Unsupervised and Supervised. Browse the blue buttons on the right hand side for more information.


With over 85 years of ongoing development, Watson-Glaser has earned its reputation as THE global measure of critical-thinking ability.

Feedback from a large number of clients is that the Watson-Glaser is highly predictive of job success in roles from graduates and above.  Until now, however, its use has been limited as a test with supervised administration.

In response to requests for an unsupervised version to allow candidate sifting, we have developed a new 40 item, online, item-banked version of Watson-Glaser which can be used for unsupervised testing: Watson-Glaser UNSUPERVISED.

This makes Watson-Glaser more suitable for "sifting" job applicants which will allow those less likely to succeed in the role to be sifted-out early on in the selection process before the costlier, final stages of assessment.

Watson-Glaser Unsupervised contains:

  • More contemporary and business relevant items
  • Interpretable sub-scale scores that provide information about three critical thinking skill domains:

RED Model

  • Better face validity and applicability of items for individuals from countries other than the United States
  • Scoring based on Item Response Theory (IRT) allowing a more accurate estimate of true critical thinking skills
  • Automated reports which include a basic Profile Report, an Interview Report, and a Development Report are available
  • There is the ability to re-test candidates who completed Watson-Glaser UNSUPERVISED with a further supervised test that can be administered online or via paper and pencil. 
  • A range of Norm Groups available - see sample report

A secure paper and pencil version of the test (Watson-Glaser Supervised) will still be available for supervised completion.  There is also the option for candidates to take the test under secure conditions through Pearson Vue's UK network of over 150 Professional Test Centres.

Braille (Grade 1 or 2) and large print versions of Watson-Glaser Supervised are available on loan by request. Please contact Customer Service on 0845 630 8888 or email info@talentlens.co.uk with your requirement.


NB Currently Watson-Glaser Unsupervised is only available in the UK