The measurement of intelligence : an explanation of and a complete guide for the use of the Stanford revision and extension of the Binet-Simon intelligence scale . ould not, according to anyof the commonly accepted social standards, be consideredfeeble-minded, but who are nevertheless far enough belowthe actual average of intelligence among races of westernEuropean descent that they cannot make ordinary schoolprogress or master other intellectual difficulties whichaverage children are equal to. A few of this class test aslow as 75 to 80 I Q, but the majority are not far from unmistakabl
The measurement of intelligence : an explanation of and a complete guide for the use of the Stanford revision and extension of the Binet-Simon intelligence scale . ould not, according to anyof the commonly accepted social standards, be consideredfeeble-minded, but who are nevertheless far enough belowthe actual average of intelligence among races of westernEuropean descent that they cannot make ordinary schoolprogress or master other intellectual difficulties whichaverage children are equal to. A few of this class test aslow as 75 to 80 I Q, but the majority are not far from unmistakably normal children who go much below this(in California, at least) are usually Mexicans, Indians, ornegroes. R. G. Negro boy, age 13-5; mental age 10-6; I Q approximately80. Normal in appearance and conduct, but very dull. Is attempt-ing fifth-grade work in a special class, but is failing. From a fairlygood home and has had ordinary school advantages. In the exam-ination his intelligence is very even as far as it goes, but stopsrather abruptly after the 10-year tests. Will unquestionably passas normal among unskilled laborers, but his intelligence will never. INTELLIGENCE QUOTIENT SIGNIFICANCE 93 exceed the 12-year level and he isnot likely to advance beyond theseventh grade, if as far. F. D. Boy, tested at age 10-2; I Q83, and again at 1J/--1; I Q. age in the first test was 8-6and in the second test 11. Son of abarber. Father dead; mother capa-ble; makes a good home, and caresfor her children well. At 10 wasdoing unsatisfactory work in the fourth grade, and at 12 unsatisfac- FlG- 12- BAL^^ ?*??• R G i . i • >_, ^ j AGE 13-5; MENTAL AGE 10-6 tory work m low sixth, (jrood- looking, normal in appearance and social development, and thoughoccasionally obstinate is usually steady. Any one unacquaintedwith his poor school work and low I Q would consider him per-fectly normal. No physical or moral handicaps of any kind thatcould possibly account for his retardation. Is
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