REFERENCES
- Eells , W.C. and Fox , C. 1932 . Sex Difference in Mathematical Achievement of Junior College Students . J. Ed. Psy. , 23
- Heilman , J.D. 1933 . Sex Differences in Intellectual Abilities . J. Ed. Psy. , 24
- Conrad , H.S. , Jones , H.E. and Hsiao , H. 1933 . Sex Differences in Mental Growth and Decline . J. Ed. Psy. , 24
- Garrett , H.E. , Bryan , A.I. and Perl , R.E. 1935 . Age Factor in Mental Organisation . Archives of Psychology ,
- Livesay , T.M. 1937 . Sex Differences in Performance in the American Council Psychological Examinations . J. Ed. Psy. , 28
- McClelland , W. 1942 . Selection for Secondary Education , London : University of London Press .
- Gesell , A. 1946 . How a Baby Grows , 78 – 78 . London : Hamish Hamilton .
- Gesell , A. 1946 . How a Baby Grows , 50 – 50 . London : Hamish Hamilton .
- et al. Experimental Social Psychology Harper New York 1937 111 111
- Carmichael , L. 1936 . A Re-evaluation of the Concepts of Maturation and Learning . Psychological Review , 43
- Morgan , C.T. 1943 . Physiological Psychology , New York : McGraw Hill . (quoted in SHERIF, M. (1948). An Outline of Social Psychology. New York: Harper Bros.).
- For discussion and further reference on this topic, see Fleming C.M. Adolescence Routledge and Kegan Paul London 1948 especially Ch. IX.
- Gesell , A. 1946 . “ The Ontogenesis of Infant Behaviour ” . In Manual of Child Psychology , Edited by: Carmichael , L. 322 – 322 . New York : Wiley . Ch. 6
- Freeman , F.N. and Flory , C.D. 1943 . “ Growth in Intellectual Ability ” . In Child Behavior and Development , 159 – 159 . New York : McGraw Hill . from BARKER, R. G., KOUNIN, J. S. and WRIGHT, H. F.
- Stoddard , G.B. 1945 . The Meaning of Intelligence , New York : Macmillan .