(MPQ), three patient groups were formed. The groups were called the

gastric bypass group, the hand surgery group, and the hand rehabilita-

tion (hand rehab.) group. This procedure reduced the sample size from

55 to 32 in the gastric bypass group: 12 in the hand surgery group, and

11 in the hand rehabilitation group.

 The intent of this study was to look at psychological types as a

whole. However, the patient sample proved to have a very unequal

representation of types on the Myers-Briggs Type Indicator (MBTI). The

decision was made to look only at the main preferences on the MBTI,

extraversion/introversion (El), sensing/intuition (SN), thinking/feeling

(TF), and judging/perceiving (JP), for each of the three patient groups,

leaving analysis of individual types to the time when larger and more

representative samples can be collected.

 The Millon Behavioral Health (MBH) inventory measures coping

styles, psychogenic characteristics, psychosomatic correlates, and

prognostic indicators for medical populations. It was used in this

study to measure individual coping styles.

 The Wallston Health Locus of Control (HLOC) scale is a measurement

of a patient's degree of perceived control over their own health.

Subjects are described as internal or external. This instrument was

used in this study to measure locus of control and test hypothesis seven

(Ho 7).

 The Health History Questionnaire (HHQ) is a standard symptom

evaluator of the checklist type, divided by anatomical and physiological

systems, and containing a category for general and mood type symptoms.

This checklist was used in this study to test Ho 6.