Construction and Scale Validation For Evaluating Type D Personality and a Study of its Relationship to the Coronary Heart Disease

The aim of this study is the scale construction for evaluating type D personality and a study of its relationship to the coronary heart disease. The population of the study includes all the students and staff of the Islamic Azad University, in Esfahan province and the patients with coronary heart disease who consulted heart specialists. The sample of the study includes normal people and patients with heart diseases who were selected randomly in certain steps. In order to check the validity of the construction of the primary questionnaire, the statistical factor analysis method was used, and for the research hypothesis the U Mann Whitney test was used. To check the reliability of simultaneity of the primary D scale form, the questionnaire of Denollet type D personality, and General Health questionnaire, Glass Negative thought under scale of social interaction, and Ahwaz type A personality in are used. Coefficient correlation of simultaneous performance and above questionnaire are in ordered as follows. and (P<). In order to examine the reliability of the constructed scale the methods of Cronbach Alpha, test-retest and split-halves are used. The coefficients obtained via above methods are ordered as follows and (P<). The results of interactive analysis together with the methods of main items and turning round of varimax were five factors. which are accordingly named depression, anxiety, anger and offensiveness as under scale of negative excitements and social limitation and verbal preventions as under scale of social inhibition. The amounts of value scale of questions were about, KMO which shows the sufficiency of sampling is. and Bartlett´s test of sphericity was (P<). The results of the study of the relationship between type D personality and coronary heart disease shows that U Mann Whitney equals z = (P<). Therefore, the differences between the scores of normal people and patient with heart disease were meaning ful.