130 MEMOIRS NATIONAL ACADEMY OF SCIENCES. [vol.xv. 



them. Examiner should appoint one as inspector to make sure that every model is dissembled, and all the parts in perfect 

 order before re-stacking the boxes. One examiner and two assistants can with practice score 25 boxes in 30 minutes.) 



-Score values. — The score value to be given for each degree of performance is shown in the cuts. Occasionally 

 some model will be so assembled that it conforms to none of the values given; give the score value nearest the same. 

 The various 3core values are quickly memorized. In those cases in which subject finishes before the time is up, add 

 one-quarter point for each gain-minute — i. e., for each minute of the standard 30 minutes that remains after he has 

 finished. In adding up the final score avoid fractions by taking the nearest whole number. 



Following is a sample score properly filled out: 



Stenquist construction score. 



Model A B C D E F 



Score 10 10 9 10 10 9 



Time, 25 min. Credit for time. 



Total score 82 



The above score means that subject finished the test in 25 minutes; 5/4 is added to the total 81; the total score is 

 recorded as 82. In the majority of cases subject does not finish before the time is up and no entry is made under 

 "Time." 



See page 146 for score values of various types of performance. 



INDIVIDUAL EXAMINATION. 



It is assumed that the group examinations will have indicated for certain men the need or desirability of individual 

 examination. 



Time permitting, three groups, as classified by the group examinations, should be further examined by the indi- 

 vidual method. These are (1) the lowest 3 to 5 per cent; (2) some of the highest; (3) certain of the irregular or atypical 

 individuals. 



The tests which are suggested for use in individual examinations are not arranged as a single scale. They may 

 be used singly or in groups according to need. 



If the subject has been examined by the group method, the result should indicate to the examiner lines of special 

 inquiry in the individual examination. 



For illiterates or those who have difficulties with English , tests A to G , designated as group I , are specially recom- 

 mended. 



For those who because of poor records in the group examinations or for other reasons are suspected of being intel- 

 lectually subnormal, tests K to P and in addition I and J, which together constitute group II, or testB Q to V, and in 

 addition I and J (group III) are recommended. 



Subjects who because of peculiarities of behavior within or without the examining room are suspected of being 

 psychotic may best be examined by the use of tests D, E, G, J, R, S, and T. Irregularities or inequalities of perform- 

 ance are significant in these and other tests. 



For the further examining of men who rank very high in the group examinations or who for other reasons are thought 

 to be supernormal, tests A, C, E, I, J, K, and P are especially suitable. 



Summary. 



Illiterate and foreign: Tests A, B, C, D, E, F, G, with such supplementation as proves desirable. (Group I.) 



Intellectually subnormal: Tests K, L, M, N, O, P, I, J (Group II), or Tests Q, R, S, T, U, V, I, J (Group III). 



Psychotic: Tests D, E, G, H, J, R, S. 



Intellectually supernormal: Tests A, C, E, I, J, K, P. 



The danger of "coaching" has been provided for in such tests as required it, by the preparation of several com- 

 parable "series" of materials. Usually there are five "series." 



The examiner should choose for a given subject the "series" which is to be used (for example, series 3) and should 

 record the series number in the space provided after name of test on record blank. So far as feasible, tests of the 

 same series number should be used throughout an individual examination. 



N. B.— Time is to be scored throughout in seconds. 



Examiners' Directions for Individual Examination. 



Test A, cube construction. 



Materials. — (1) a block of wood (model 1), 1 by 3 by 3 inches, painted a dark red on the four edges, not on the 

 upper and lower surfaces, and cut to a depth of 2 mm. so that it closely resembles a composite of 9 small cubes ; (2) a 

 block (model 2) like the one described under (1), except that in addition to the four edges one of the remaining sur- 

 faces is painted; (3) a 2-inch cube (model 3) un painted and cut on the four surfaces so that it looks like a composite 

 of 8 small cubes; (4) a 3-inch cube (model 4), unpainted, and so cut on the surfaces that it looks like a composite of 

 27 small cubes; (5) the cubes (1 inch) necessary for the construction of counterparts of the several models; (6) a wooden 

 box 2 inches deep, 8 inches wide and 13 inches long, divided by wooden partitions into eight equal compartments. 



