492 ILLINOIS STATE ACADEMY OF SCIENCE 



THE VALIDITY OF ARITHMETICAL-EEASONINO 



TESTS 



R. V. HuNKiNS AND F. S. Breed, University of Chicago 



The primary purpose of this investigation was to throw 

 light on the relative validity of several arithmetical- 

 reasoning tests now in use in the public schools. A sec- 

 ondary purpose w^as to explain in some measure the 

 different degrees of merit shown by the different tests. 



The following tests were used in the experiment : 



(1) Daniel Starch: Arithmetical Scale A. 



(2) C. W. Stone: Reasoning Test. 



(3) W. S. Monroe: Standardized Reasoning Test 

 in Arithmetic, Form 1. 



(4) B. R. Buckingham: Scale for Problems' in 

 Arithmetic, Form 1. 



(5) E. H. Chappie, S. A. Courtis, F. R. Matthews: 

 Arithmetic Tests — Reasoning. 



(6) R. M. Yerkes, M. E. Haggerty, L. M. Terman, 

 E. L. Thorndike, G. M. Whipple: National Intelligence 

 Tests, Scale A, Form 1, Test 1. 



(7) M. E. Haggerty: Intelligence Examination, 

 Delta 2, Exercise 2. 



(8) A. S. Otis: Group Intelligence Scale, Advanced 

 Examination, Form B, Test 5. 



(9) L. M. Terman: Group Test of Mental Ability, 

 Form A, Test 5. 



(10) A. S. Otis: Group Intelligence Scale, Advanced 

 Examination, Form B (complete). 



For special reasons the results from tests (5) and (9) 

 were not included for further study. 



The subjects to whom the tests were administered were 

 pupils in grades five to eight, inclusive, of a Hot Springs, 

 S. D., public school. Complete data on all tests were se- 

 cured from 127 subjects. 



In advance of experimentation, a plan of administering 

 the tests was devised to control such variables as time of 

 day, day of week, and order of administration. All tests 

 were administered and scored personally by Mr. Hunkins. 



