Interaction of psychosocial and physical risk factors in the causation of mammary cancer, and its prevention through psychological methods of treatment.

Some 8059 healthy women (mean age 58 years) were studied in 1973 with the aim of establishing the presence or absence of a variety of physical and psychological risk factors for mammary cancer. Mortality was established in 1988. factor predictors were highly significant.

Method of test administration as a factor in test validity: the use of a personality questionnaire in the prediction of cancer and coronary heart disease.

This study examines the predictive accuracy of four different methods of administration of a questionnaire designed to predict cancer and coronary heart disease (CHD) in healthy probands. The method of administration uses the establishment of trust and the explanation of questions as variables in all four possible combinations, i.e.