
Evidence highlights
Explore the Assessment Efficacy Report to understand more

Predictor of course success
Very beneficial correlations between test results and course grades

Consistent results over time
Adequate to excellent test-retest reliability

Internally consistent tests
Cronbach's alpha of 0.83 (a good level of internal consistency)
Researching Watson-Glaser
We assembled evidence from a range of sources to support the validity, reliability, and fairness of the Watson-Glaser Critical Thinking Appraisal in assessing critical thinking ability.
The above finding about the test’s ability to predict likely course success is based on one study with a group of business school students and another with 123 legal training course students.
Cronbach’s alpha was computed based on a sample of 147 working adults in the US.
Assessment Efficacy Report
A summary of relevant research
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