The early investigators of the Rorschach technique soon discovered that the records of children differed in many ways from those normally produced by adults. When interpreted by adult standards, children's records had such a distinct pathognomonic character that many of the investigators considered the Rorschach test invalid for use with young children.
In recent years, the great amount of literature on the subject indicates that there has been a marked increase in the number of studies done on children with the Rorschach technique. Much of the evidence from these studies is conflicting, so the authors of this book undertook this investigation to determine how valuable the technique can be in studying the individual child and developmental trends in general.
The authors, all from the Gesell Institute of Child Development, analyzed the scores of 650 separate Rorschach protocols. There were 50 records at each half-yearly level between 2 and 5½ years