Critical thinking can be assessed using various tools that measure skills like drawing inferences, evaluating arguments, and deductive reasoning. Some common assessment tools include the Watson-Glaser Critical Thinking Appraisal, Cornell Critical Thinking Test, California Critical Thinking Skills Test, Ennis-Weir Critical Thinking Essay Test, and Halpern Critical Thinking Assessment. These tools often use multiple choice questions or open-ended essay questions to evaluate skills like analysis, evaluation, inductive and deductive reasoning. Rubrics can also be used to assess critical thinking based on categories like questioning abilities, use of information, drawing conclusions, and self-awareness.