The attached file describes nine obstacles to critical thinking; failure to overcome them can lead to flawed reasoning. Train yourself to spot these obstacles as you do evaluation work, and train yourself in overcoming them. Your work will have a better chance of leading to changes in community development planning and implementation that make the world a better place.
Robert J. Gula, Nonsense: Red Herrings, Straw Men and Sacred Cows: How We Abuse Logic in Our Everyday Language, Axios Press, 2007.
The author intended to write a “timeless handbook of verbal logic.” Using everyday language and examples, he succeeded. Spending a few minutes twice a week reading and thinking about a specific logical error has improved my writing and my ability to identify nonsense quickly in news stories. I recommend this inexpensive but valuable paperback.