Cohen et al (1993) aims, procedure, findings, conclussion, evaluation :) 3.5 / 5 based on 5 ratings ? PsychologyASAll boards Created by: danni :)Created on: 28-05-12 13:30 aims to investigate the role of general life stress on vulnerablity to the common cold. 1 of 6 Procedure 394 participants completed questionnaire on number of stressful life events they had experienced in the previous year. Rated their degree of stress rated level of negative emotions three scores combined into a stress index score participants exposed to common cold 2 of 6 findings 82% became infected. After 7 days, number who had developed clinical colds was recorded. chance of catching a cold significantly correlated with stress index score 3 of 6 Conclussions life stress and negative emotions reduce the effectiveness of the immune system, leaving people less able to resist viral infections. 4 of 6 pros supported by evans and edginton (1991) who found probabilty of developin a cold significantly correlated with negative events from proceeding days. measured health outcomes showing a relationship between stress and illness, whereas, some studies just measure immune function. 5 of 6 cons no direct manipulation of the independant variable so cause and effect relationship cant be established. By combining the three measures, we cant tell which element of the stress index is most important in making us more vulnerable to viruses. 6 of 6
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