_Item 3._—Lines of semi-circumference must start from or near corners of square. _Item 4._—Line must not start from corner. 4. TOTAL SCORE AND RATING The result of examination Beta is expressed as a “total score,” which is the sum of the raw scores of the several tests. The raw scores are obtained as follows: ═════════════════════════════════════════════════ TEST METHOD OF SCORING MAXIMUM SCORE ───────────────────────────────────────────────── 1 Half point for each half maze 5 2 Number right 16 3 Number right 12 4 One third of number right 30 5 Right minus wrong 25 6 Number right 20 7 Number right 10 ——— Total 118 ───────────────────────────────────────────────── Letter ratings are assigned on examination Beta as follows: ══════════════ RATING SCORES ────────────── A 100–118 B 90– 99 C+ 80– 89 C 65– 79 C− 45– 64 D 20– 44 D−[6] 0– 19 ────────────── Footnote 6: Recalled for individual examination. All ratings above D− are entered and reported at once. Men whose scores fall below D are recalled for individual examination. Ratings of D− may not be given in examination Beta, unless recall of the men for individual examination is impossible. APPENDIX C METHOD OF CALCULATING THE COEFFICIENT OF COÖRDINATION (See Pages 95–97) A simple method of determining precisely the degree to which the mental test of 28 school children reflects or is related to their scholarship records and the teacher’s estimate, as shown in the table on Page 96, is to plot the relationship graphically, which has been done in the accompanying diagrams.