A Study of the Reliability of Test Questions
This paper is a study of a test on deductive reasoning and a comparison of the results of that test with the teachers’ marks in plane geometry. T his test was given to 49 high-school girls who had just completed a half year’s work in plane geometry covering during that time the first two books of Robbins & Somerville’s text-book. Previous to their study of geometry they had studied algebra through simultaneous quadratics, spending on that 5 periods a week for one school year and 2 periods a week of ¼ of a school year. That was followed by 2 periods a week for ¼ of a school year in constructive geometry. In the case of 5 of these girls we have been unable to obtain the teacher’s marks, so that in this paper the answers of only 44 girls are taken into account.