Abstract

References
1.
Morgan
C. T.
Introduction to psychology. New York : McGraw-Hill , 1956 .
2.
Scheinfeld
A.
The new you and heredity. New York : Lippincott , 1950 .
3.
Sinnott
E. W.
Dunn
L. C.
, &
Dobzhansky
T. H.
Principles of genetics. New York : McGraw-Hill , 1950 .
4.
Wechsler
D.
The measurement of adult intelligence. Baltimore : Williams and Wilkins , 1944 .
