Facets of Critical Thinking
There are many similar lists containing the principles or facets of critical thinking. I looked at numerous sources before I developed the relatively complete list below. But for the definitive sources for critical thinking, analytical thinking, scientific thinking, and much more, it would behoove you to refer to the comprehensive resources at The Foundation for Critical Thinking; http://www.criticalthinking.org/
1. Gather sufficiently complete information, but maintain a rigorous standard for what constitutes evidence (facts, data).
2. Understand and define all term and models (verbal, physical, mathematical); clarify interpretations.
3. Evaluate the methods by which facts are derived; be aware that the information gathering process is fallible.
4. Examine the sources of facts; compare conflicting sources, then evaluate their credibility.
5. Examine for multiple causes for any effect and for multiple effects from any causal phenomenon.
6. Don’t expect all of the answers; suspend judgement if outcomes are not definitive.
7. Question the conclusions (think independently); compare alternative conclusions, seek new conclusions.
8. Look for hidden assumptions and biases in the arguments, models, or explanations; examine for oversimplifications-and-omissions and complexity-and-contradiction in the logic; seek historical perspective.
9. Examine how your emotions (e.g., enthusiasm, anger, insecurity, and pride) may affect your thinking.
10. Understand how your own biases and values may affect your thinking; develop perspective on yourself.
11. Do not rush the critical thinking processes.
12. Be contemplative, honest, courageous, and persevering in your search for truth.
ORIGINS AND EXTINCTIONS 