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MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Test 4- 

 (Score is number right minus number wrong.) 



1. Any clear method of indicating answer is given credit. 



2. When both "same" and "opposite" are underlined, counts as omitted, not as wrong. 



3. If only "same" is underlined right down the column, score for the test is zero. Similarly if "opposite'' is 

 underlined right down the column. 



Test 5. 

 (Score is number right minus number wrong.) 

 Same rules as for test 4. 



Test 6. 

 (Score is number right.) 



1. If only one number is written, give no credit. 



2. If only one of the numbers is right, give no credit. 



3. If four numbers are written, as frequently happens with certain items (i. e., 33, 11 instead of 3, 3), give full 



credit. 



Test 7. 

 (Score is number right.) 



1. Any clear indication other than underlining receives full credit. 



2. Underlining of any of the first three words of an item does not remove credit. 



3. If two or more of the last four words are marked, give no credit. 



(Score is number right.) 

 Same rules as for test 7. 



Test 8. 



3. TOTAL SCORE AND RATING. 



The result of examination alpha is expressed in a total score which is the sum of the raw scores of the several 

 tests. The raw scores are obtained as follows: 



Letter ratings are assigned on examination alpha as follows: 



1 Recalled for further examination. 



All ratings above D— are entered and reported at once. Men whose scores are below D are recalled for exam- 

 ination beta. Ratings of D— may not be given in alpha, unless recall of the men for beta is impossible. 



IV. Group Examination Beta. 

 l. directions for setting up apparatus. 



Beta materials are shipped in three packages. 



1. Blackboard frame. 



2. Blackboard chart. 



3. (a) Cardboard pieces for test 7; (6) patterns for constructing cubes for test 2. 



The blackboard frame consists of 8 fitted sections, 2 uprights which carry 2 rollers and 4 crossbars which are attached 

 to the small crosspieces of the uprights The blackboard should be set up so that the ends of the rollers to which the 

 crank may be fitted come on the right-hand side. A piece of beaver board 30 by 40 inches should be nailed to the 

 crossbars so as to give a rigid writing surface. This must be procured in the camps. 



The blackboard chart is a continuous roll 27 feet long. Care should be used in attaching chart to rollers so that it 

 will wind evenly. The chart must be kept as clean as possible at all times. The painting should be gone over from 

 time to time with a white gloss paint. 





