Oakland California Research Articles

Both individual and group intelligence tests have been ex tensively used in the public schools of Oakland, California for a number of years. Their value as administrative tools is well es tablished. They have contributed to a better understanding of many school problems such as retardation, elimination, and proper curriculum modification; and they have resulted in administra tive adjustments leading to greater efficiency. This article presents certain data from tests of 1,043 day ele mentary-school pupils who completed the eighth grade in Oak land, January, 1920. This includes all those graduated at that time except a small number who were absent from school the day the tests were given. The Otis Group Intelligence Scale, as ab breviated for use in Oakland, was employed in making the tests. The abbreviation omits tests 1, 6, 9, and 10. Itincludestests2,3, 4, 5, 7, and 8 without modification as to directions for giving, timing, or scoring, except that tests 4 and 5 are given double value in the final score in order that they may contribute a greater amount to the final test result. The highest possible score with the abbreviated test is 175. In order that the six-test scores obtained at Oakland may be compared with the scores arising from the use of the complete test, Dr. Arthur S. Otis, the deviser of the test, has furnished Table I. By its use a ten-test score may be transmuted into a six-test score. The tens and hundreds digits of the six-test score are printed in italics in the line across the top; the units digits of the six-test score are printed in italics in the column at the left. To find the ten-test score corresponding to a known six-test score find in the body of the table the number under the tens digit (or tens and hundreds digits combined) and opposite the units digit. For ex 106

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