Neurosis and conscious symptom exaggeration: its differentiation by the Illness Behaviour Questionnaire.

In an attempt to develop an instrument to differentiate conscious exaggerators of symptoms from normals and neurotics, the Illness Behaviour Questionnaire (IBQ) was administered to 164 members of a public utility, half of whom were instructed to fill it out as conscious exaggerators, and 82 individuals who presented at a hospital pain clinic with pain considered to be neurotically determined. Four IBQ subscales differentiated the three groups, and a new 21-item scale (CE-scale) was developed which achieved wide separation between the conscious exaggerators, neurotics and normals. It is suggested that the CE-scale may have considerable utility in assessing conscious exaggerators and compensation neurotics, and that further studies should assess its predictive value.