This study compared MMPI profiles of mothers of pre-school children who are emotionally disturbed and have behavior problems with those of a control group. Mothers of children with emotional problems had significantly higher scores on five clinical scales when compared with control mothers as expected: Depression ( D), Psychopathic Deviate ( Pd), Psychasthenia ( Pt), Schizophrenia ( Sc), and Hypomania ( Ma). Mothers of children with behavior problems differed from controls only on the Hypomania ( Ma) scale. The significance of these results is discussed in terms of their contribution to the resolution of the question as to whether or not maternal maladjustment is a causative factor in deviant behavior in children or simply a reaction to a problem child.