An Experiment in the Development of Critical Thinking

27 per cent ability to think academic standing answers Appleton-Century Company arguments behavior bottom 27 Columbia University Company Compos composite score conclusion control classes control group correlation course critical thinking score critical thinking tests Educational Psychology effective errors Evaluation evidence experiment experimental and control experimental classes experimental group factors facts given high school improvement INITIAL TEST instruction intelligence quotient intelligence test Interest-Values Inventory involved judgment knowledge learning lesson units logical reasoning Martin test material MEAN GAINS measure ment methods National Education Association opinion persons points problem-solving problems processes Progressive Education Association Propaganda Analysis Psychology question Range Mean S. D. reasoning ability relationship resistance to propaganda retest scores scientific attitude Scientific Method Scientific Thinking situations Social Psychology Social Studies statement Table Teachers College teaching tenth grade Tests of Critical think critically thought tion twelfth grade Watson-Glaser Tests York Z-score Ει