Man and abnormal man, including a study of children, in connection with bills to establish laboratories under federal and state governments for the study of the criminal, pauper, and defective classes, with bibliographies . Fig. 8.—Location apparatus. (Fitz.) armature of an electromagnet. When the screen falls the circuit is broken andthe pendulum carrying its index is released. The remaking of the circuit by thetouch of the subjects finger releases a clamp and catches the index, so that the timemay be read upon the scale. Professor Fitz measured some of the elements makingup the differences w


Man and abnormal man, including a study of children, in connection with bills to establish laboratories under federal and state governments for the study of the criminal, pauper, and defective classes, with bibliographies . Fig. 8.—Location apparatus. (Fitz.) armature of an electromagnet. When the screen falls the circuit is broken andthe pendulum carrying its index is released. The remaking of the circuit by thetouch of the subjects finger releases a clamp and catches the index, so that the timemay be read upon the scale. Professor Fitz measured some of the elements makingup the differences which exist between individuals in their power to do certain. —Pendulum cbronoscope (Fitz.) things requiring quickness and accuracy. The difl^erences were found to be quiteconsiderable, and there was an apparent lack of coordination between time anderror. Those who were quick were not necessarily less accurate than those whowere slow. The table which follows gives results suggesting the wide range ofindividual ability. 170 MAN AND ABNORMAL MAN, Table 1.—Differences in individuals in quickness and accur-acy. Males. Females. Time in jJo seconds. Numberof indi-viduals. Per centof total. Averageerror. Numberof indi-viduals. 11218251140 Per centof total. Averageerror. 27 35 11 48 54 29 18 8 4 0 1 35 45 45 55 55- 65 65 75 75 85 85 95 . .. 95 105. .. 105 115 The table contains observations on 173 males and 72 females. The first columngives limits of quickness, the second column number of individuals, etc. Thoughthe time


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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherwashingtongovtprin