. Handbook of mental examination methods. curacy) is to be deter-mined by the variation of these dots from the point or pointswhich are to be hit. (d) Accuracy of Throwing at a Target.—A similar experi-ment of a qualitative nature may be made as follows (see ). A target board, in which there is a circular hole 15 cm. indiameter, is placed against the wall of the room and the subjectis presented with ten golf balls or ten large marbles which are tobe thrown into the hole. Most normal people are able to throwsix out of the ten in the hole at a distance of two meters (/. e.,from the hand to
. Handbook of mental examination methods. curacy) is to be deter-mined by the variation of these dots from the point or pointswhich are to be hit. (d) Accuracy of Throwing at a Target.—A similar experi-ment of a qualitative nature may be made as follows (see ). A target board, in which there is a circular hole 15 cm. indiameter, is placed against the wall of the room and the subjectis presented with ten golf balls or ten large marbles which are tobe thrown into the hole. Most normal people are able to throwsix out of the ten in the hole at a distance of two meters (/. e.,from the hand to the target) and all are thrown into the hole atone meter. If more than the normal number of mistakes aremade at these distances, the inaccuracy may be expressed in per-centages of the normal. In tests of this character men are (from 54 MENTAL EXAMINATION METHODS practice) more capable than women, and normal men usually areable to throw six of the ten balls into the hole at a distance ofthree meters and all at a distance of two Fig. 14. Target board. A, base; C, opening; D, outside ring for estimat-ing otber than errors of throwing into target opening. Force op MovementVariations in force of movement are more easily tested, al-though not as accurately determined as those of speed andaccuracy. The force appears to be independent of the accuracyand of the speed, but the amount of work which is performeddoes depend, of course, largely upon the speed of the individualmovements. For the purpose of testing the force of movementsboth qualitative and quantitative tests may be made. The quan-titative tests of force are limited, however, because of the lack ofappropriate apparatus for the determination of the activity ofindividual muscles or of groups of muscles so that in the testingof individuals we must rely more upon the qualitative tests thanupon the quantitative ones if we are to examine all different partsof the musculature. Variations in force of movement are con-sider
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