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MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Table 52. — Showing correlations of Stanford-Binet mental age with scores in separate beta tests — English-speaking whites 



from nine camps. 



r (S-B with beta 1)=0.465±0.021 Mean (beta 1)= 6.61 a (beta 1)=2.37 

 Mean(S-B)=13.42 a (S-B)=2.85 



r (S-B with beta 2)=0.545±0.019 Mean (beta 2)= 8.95 <r (beta 2)=4.56. 



r (S-B with beta 4)=0.639±0.016 Mean (beta 4)- 13.35 a (beta 4)= 7.51. 



1 In original tables from which computations were made intervals of half-year mental ages were used. In the present tables 5 years mentel 

 age include 5 to 5.9; 6 years include 6 to 6.9, etc. 



