Thorpe, L. P. (1955). Emotional factors in development. In L. P. Thorpe, Child psychology and development (pp. 298-326). New York, NY, US: Ronald Press Company.
http://dx.doi.org/10.1037/13197-009
Any examination of the psychological literature in either its technical or popular forms makes it evident that emotional (affective) behavior is regarded as being an extremely important phase of child development. Although not always in agreement as to the function of emotional forces, practically all writers on child psychology and development devote considerable space to an account of their origin, as well as to methods by which they may be regulated. Thus any serious consideration of the problems of human development must take into account the processes associated with emotional reactions. Chapter subheadings include the following: The nature of emotional behavior; The experimental study of children's emotions; and, The maintenance of emotional control. (PsycINFO Database Record (c) 2016 APA, all rights reserved)