Educational Psychology (1914) Volume: 1

This volume, which describes man's original mental equipment —the inherited foundations of intellect, morals and skill, is the first of three, which, together, give the main facts of educational psychology. The second volume, on The Psychology of Learning, treats of the laws of learning in general, the improvement of mental functions by practice and their deterioration by fatigue. The third volume, on Individual Differences and Their Causes, treats of the variations of individual men around the general type characteristic of man as a species, and of the influence of sex, race, immediate ancestry, maturity and training in producing these variations. This third volume was written first, appearing in 1903 under the general title, Educational Psychology.

A systematic account of present knowledge of the dynamics
of human nature and behavior is much needed for students of
education and other forms of human control. These volumes
represent a selection from, and organization of, recent work in
experimental, statistical and comparative psychology, such as
will, I hope, economize effort and diminish the chances of error
for such students.

The reader to whom these volumes bring any new insight into
human nature, power in the quantitative treatment of mental facts, or interest in the rich details of concrete human nature, will be- come a sharer in my debt to my teachers, William James and James McKeen Cattell, and to that intrepid devotee to concrete human nature, Stanley Hall, whose doctrines I often attack, but whose genius I always admire.