Excerpt from Motion Pictures in History Teaching: A Study of the Chronicles of America Photoplays as an Aid in Seventh Grade Instruction

Concepts Which the Various Sections of the Knowlton Tests Were Designed To Measure, Percentages of Test Items, (a) Checked as Not Worth Teaching, (b) Failed by Five or More of Ten Teachers, (c) Both Checked and Failed, Reliability Coefficients for Some of the Measures Obtained with the Knowlton Tests, Gains Made by Each Section on Each of the Five Knowlton Tests, Comparison of Gains on the Separate Knowlton Tests, Comparison of Combined Knowlton Test Gains, The Effect of Reductions of Differences in Mental Age, Educational Age, Intelligence Quotient, and Educational Quotient upon Differences in Gains, Comparison of Gains on the Knowlton Tests for Individually Matched Groups, Initial Scores and Gains Made by the Experimental Group and the Higher-Ability Control Group, The M.A., E.A., I.Q., and E.Q. Handicaps Overcome by the Experimental Group in Equaling the Gain Made by the Control Group on the Five Knowlton Tests Combined, Gains Made by Each Section on the Van Wagenen American History Scales, Information Scale C-2, Comparison of Experimental Group f-i-j-l and Control Group B-E-K-N and of the Gains Made by These Groups on the Van Wagenen Scale C-2, Dates of Testing, Comparison of Points Gained, Lost, and Retained on the Separate Tests

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