of each scale can be found in Table 3-2, and comprehensive descriptions

of the scales are found in Appendix A.

 The author of the MBHI believes that validation is an on-going

process that should take place in phases of test construction rather

than assessing the accuracy of an instrument after its completion. The

validation process has three separate procedures: theoretical-

substantive, internal-structural, and external-criterion. A brief

description of these procedures and results follows.

 Theoretical-substantive validation stage: The MBHI is derived from

 Million's theory of personality. This stage examines the degree to

 which the test items represent the theory. It consisted of con-

 structing an item pool (1000 items), then reducing the list, and

 finally asking 10 health professionals familiar with the Millon

 personality theory to independently sort the items into Coping

 Style and Psychogenic Attitudes categories. In order for an item

 to be included, 7 of the 10 professionals had to have selected it.



 Internal structure validation stage; This stage measured the

 within-scale homogeneity of the instrument. The author believes

 that coping style and psychogenic attitude are not discrete

 psychological dimensions and "comprise complex characteristics,

 sharing many traits as well as distinctive features" (Millon et

 al., 1982, p. 24). He stated that factoriall purity is neither

 clinically feasible, nor even theoretically preferred" (Millon et

 al., 1982, p. 24) and adapted procedures to enhance the high item-

 scale homogeneity.