Gerard and Phillips study the relationship of social adjustment to (a) pituitaryadrenal responses and (b) psychological behavioral responses to experimental stress situations. This study of twenty-one normal subjects was prompted by the fact that both disturbed adjustment patterns and altered pituitary-adrenal function occur in such syndromes as schizophrenia, asthma, and hypertension. Those subjects with higher social attainment showed more adaptive responses to frustration, as produced by the Target Ball Frustration test. The pituitaryadrenal response of these subjects (as measured by the increase in the rate of excretion of 17-ketosteroids) showed that they were under less physiological stress. Their behavioral response likewise showed these subjects to be under less stress, for they shifted their goals more realistically after failure.