ABSTRACT
Just as intelligence test scores are useless without the comparison, so it is impossible to tell whether any particular kind of social behaviour is significant without a similar comparison. In practice, such comparisons are continually made implicitly, as when a child is labelled as 'difficult' by any member of the staff. This chapter indicates something of what is known about the factors causing growth from one phase of interest to another. It may be as well to attempt a summary of this, in terms of the conditions of the environment and the availability of various ways of resolving the conflicts of impulse. Some of the environmental factors that appeared to have influenced the degree of development reached in the girls studied, may be summarized as follows, though this is not intended as an exhaustive list.
