ABSTRACT
The principal message to emerge from the consideration of the studies is that the problems of abnormal behavior can indeed profitably be tackled by a conjunction of skills and knowledge drawn from experimental and abnormal psychology. Perhaps one might even risk a paraphrase and conclude that, in the study of abnormal behavior, change without measurement is blind whereas measurement without change is empty. Many of the investigations that have been cited emphasize and reinforce the contention that the problems of abnormal behavior must be explored directly—and not just by the indirect means so often employed. For a multitude of problems in abnormal psychology, the application of scientific procedure remains more a future hope than a present reality. In the first place, it must be admitted that—in the abnormal field—there are differences of opinion about what should properly be considered the rightful subject matter or content of psychology.
