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Rosenman and Friedman (1974)

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Kayleigh Knight

on 3 February 2015

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Transcript of Rosenman and Friedman (1974)

Rosenman and Friedman (1974)
Strength
The study showed a strong correlation which suggests that there is a link between "personality type" and CHD as assessed by Rosenman and Friedman.
Aim
To research the link between personality factors, stress and Coronary Heart Disease (CHD).
Procedure
In a nine year longitudinal study, the healthy men were assessed to determine their personality type by answering 25 questions about how the individual responded to everyday life.They then followed up throughout the nine year longitudinal study.The men were split into two roughly equal groups, depending on whether they were assesed as type A or non-type A (Type B). Type A individuals tended to be ambitious, competitive, time conscious,and demanding of perfection. Non-type A (Type B) individuals were more relaxed and easy-going.
Weakness 1
Correlation isn't the same as cause and effect. While it could be the case that Type-A behaviour leads to increased CHD risk, it could also be the case that the behaviour and CHD are themselves caused by a separate unknown factor.
Weakness 2
The classification into Type-A and non Type-A may be simplistic: individuals exhibit different behaviours in different situations and times, and so a Type-A individual might actually be assessed as non Type-A if re-assessed on a different occasion.
Findings
Over the course of the study, after 8.5 years 257 of the participants died from CHD, of those 257, 70% were indentified as being Type A.Type A's also had higher cholesterol, and higher blood pressure, they were also identified as more likely to be engaged in risky behavious such as smoking.
Conclusion
People who are of Type-A are more susceptible to stress because of their behaviour traits, and are consequently more likely to suffer stress related illness such as CHD.
Method and Participants
Questionnaire and structured interview
3000 male participants between the ages of 39 - 59 living in california.
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