Manual of mental and physical tests : a book of directions compiled with special reference to the experimental study of school children in the laboratory or classroom . atory. Biometrilca, 8: 1911, 40-51. (15) F. Smedley, Rept. dept. child-study and pedagogic investigation,No. 3, Rep. Brd. Educ. Chlca\)oi 1900-1901; also RepComEd, 1902, L, 1115-1138. (10) G. West, Observations on the relation of physical developmentto intellectual ability, made on the school children of Toronto, n. s. 4: 1S9G, 150. TEST o: DIAMETER OP THE SKULL id TEST 3 Diameter of the skull.—This measurement has
Manual of mental and physical tests : a book of directions compiled with special reference to the experimental study of school children in the laboratory or classroom . atory. Biometrilca, 8: 1911, 40-51. (15) F. Smedley, Rept. dept. child-study and pedagogic investigation,No. 3, Rep. Brd. Educ. Chlca\)oi 1900-1901; also RepComEd, 1902, L, 1115-1138. (10) G. West, Observations on the relation of physical developmentto intellectual ability, made on the school children of Toronto, n. s. 4: 1S9G, 150. TEST o: DIAMETER OP THE SKULL id TEST 3 Diameter of the skull.—This measurement has been com-monly conducted for the purpose of investigating the correla-tion between size of the head and general intelligence. It formsalso one of the chief measurements undertaken in the Bertillonsystem for the identification of criminals. The following direc-tions are adapted from Bertillons account (1). A. MEASURING THE LENGTH OF THE HEAD Instrument.—Head calipers (Fig. 9). Method.— (1) Seat S with his right side toward a window,and stand facing his left side. Hold the left tip of the calipersfirmly in place at the glabella (space between the eyebrows),. FIG 9. HEAD CALIPEES. with the tip of the instrument between the thumb and fore-finger, and with these resting on the adjacent parts of the fore-bead to prevent the compass-tip from deviating. (2) Hold the calipers in an approximately horizontal planeso that the scale is fully lighted by the window, with the right SO ANTHROPOMETRIC TESTS tip projecting about one cm. beyond the finger-tips of the righthand. Keep the eyes fixed upon the scale; then bring the righttip down over the back and middle of the head until it haspassed the most projecting point; then move the tip upwardagain, making sure that it is well within the hair and in con-stant contact with the scalp; continue these exploring move-ments so as to pass the maximal point two or three times, keep-ing the eyes constantly fixed upon the scale to detect this poi
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