Individual Differences in Stress - Personality Differences (Types A,B,C & hardiness) Flashcards
Personality can be defined as
“the combination of characteristics or qualities that form an individual’s distinctive character”.
Type A Personality
Time pressured/conscious/urgent
Working against the clock
Doing several things at once – multi-taskers
Constantly setting deadlines
Low boredom threshold
Excessive competitiveness
Always plays to win – achievement orientated
Ambitious
Anger
Self-critical
Hostile
Anger directed inwards
Aggressive and intolerant
Easily irritated, provoked and impatient with others
Type B is considered to be a healthier personality type
Characteristics:
Patient
Relaxed
Non-competitiveness
Tolerant
Reflective
Self-confident
Easy-going – take things in their stride
(….opposite of a Type A personality!)
How do Type A individuals respond to stress?
Type A’s respond more negatively to stressful situations than Type B’s; they are more likely to have their ‘flight or fight’ response set off by things in their environment.
As a result, Type A’s are more likely to have the stress hormones (adrenaline, cortisol) present in their bodies, which over a long period of time can increase their risk of suffering from a range of stress-related illnesses (e.g. CHD) due to immunosuppression and wear and tear of the cardiovascular system
Friedman and Rosenman (1974)
Procedure:
3,200 Californian men between the ages of 39-59 years old were interviewed and classified as Type A, B, or X.
Research technique: Behaviour was assessed through a structured interview.
Participants were asked 25 questions about how they responded to everyday pressures relating to impatience, competitiveness, motivation for success, frustration at goals being hindered and their feelings towards being under pressure.
The interview was conducted in a provocative manner in an attempt to elicit Type A behaviours. For example, as the participants answered the questions, the interviewer deliberately interrupted them or spoke slowly and hesitantly, to see how they would react, noting down any behavioural signs of type A behaviour e.g. finger tapping, restlessness.
They were followed for 8.5 years (longitudinal).
Friedman and Rosenman: Findings
Type A individuals were found to be more prone to coronary heart disease (CHD), independent of lifestyle factors (smoking and obesity).
- Twice as many Type A personalities developed cardiovascular disorders as did Type B personalities.
257 out of 3200 men suffered CHD
70% (of 257) were Type A individuals.
Type B individuals are less vulnerable to stress-related illnesses such as CHD: less than 30% of the 257 men who developed CHD were Type B.
Friedman and Rosenman: conclusions
Conclusion: Type A behaviour increases vulnerability to heart disease, suggesting that psychological factors can have physiological effects. Therefore, stressors are not harmful in themselves: it is how people perceive and react to them that is potentially dangerous for health.
Friedman and Rosenman (1960) found that Type A individuals were also more likely to suffer heart attacks than Type B individuals.
Type A: 12.8%
Type B: 6.0%
Friedman and Rosenman: Evaluation
Some of the key lifestyle variables that could have affected the participants’ vulnerability to heart disease that weren’t controlled for included elements of hardiness.
Those who don’t possess elements of hardiness may be less protected against the negative effects of stress.
Gender biased: Friedman and Rosenman only studied men
This makes their research androcentric (male-focused) and difficult to apply to females, because the behaviour and attributes of Type A are very masculine (a reflection of the importance of traditional masculinity at that time).
However, in a follow-up study, Friedman et al. (1986) studied over 800 men and women who had experienced CHD and found that both men and women experience Type A behaviours and benefit from strategies to reduce them.
This was not an experimental study, so cause and effect cannot be assumed
Evaluating Type A Behaviour and Stress
There is a lack of consistent research evidence regarding the relationship between Type A behaviour and CHD. Some research has found weak correlations or negative findings:
Miller et al. (1996) reviewed several studies, confirming Friedman and Rosenman’s original results.
Ragland and Brand (1998) found (22 years after the start of the study) that 15% of Friedman and Rosenman’s original sample had died of CHD, with age, high blood pressure and smoking proving to be significant factors, but there was little evidence of Type A personality being a risk factor.
Evaluating Type A Behaviour and Stress
The Type A personality is too broad a description. The critical personality variable is hostility, as it is thought to increase the risk of CHD.
Matthew and Haynes (1986) found that CHD was most associated with the hostility trait of Type A men, especially those experiencing high levels of hostility.
Forshaw (2002) also found that hostility was the single best predictor of CHD and a better predictor than Type A personality as a whole.
Evaluating Type A Behaviour and Stress
Perceptions of control have been found to moderate stress outcomes:
Chesney and Rosenman (1980) found that control was an important factor that interacted with personality type to determine responses to stressors – Type A managers experienced greatest anxiety when they were not in control, whereas other managers (with different personality types) experienced greater anxiety when they were in control.
Evaluating Type A Behaviour and Stress
Factors that could protect a Type A person against the negative effects of stress:
Elements of hardiness (control, commitment, challenge); Physical exercise; Social support.
Type C Personality
Strongly suppress emotions, particularly negative ones
Introverted
Sensitive
Thoughtful
Inclined towards perfectionism
Taking everything seriously
Working very hard
Conformist
Thorough in everything they do
Exceedingly dependable
Unassertive; avoid confrontation
Try to please others, even when it upsets them
Easily stressed