A test of the construct validity of health locus of control: effects on self-reported compliance for hypertensive patients.

A test of the construct validity of the Health Locus of Control (HLC) scale is presented within the larger framework of Rotter's social learning theory. Self-reported compliance behavior was predicted to relate to the subject's HLC orientation, value toward health, and level of perceived home assistance. In a sample of ambulatory hypertensive patients, a significant two-way interaction effect was calculated between the perceived level of home assistance and the patient's HLC orientation (p = .02). The more internally oriented the patient and the higher the level of perceived home assistance in complying with the prescribed medical regimen, the greater the level of self-reported compliance behavior.