Theory of planned behaviour Flashcards
Overview of theory of planned behaviour?
Combination of behavioural attitude, subjective norms and perceived behavioural control leads to intention, which leads to the behaviour
Who was it developed by?
Azjen and Fishbein in 1967
What does the theory assume?
It is a cognitive theory that assumes that thoughts influence behaviour.
The theory assumes that behaviour is under conscious control.
The conscious plan to do something is called a Behavioural intention
Azjen & Fishbein believe that behavioural INTENTION directly predicts behaviour.
What is behavioural attitude?
Behavioural Attitude is a positive or negative evaluation of the behaviour, combined with a belief about the outcome of the behaviour
What is subjective norms?
Subjective Norms are perceptions of what others think/do, and whether we want to conform or not to norms of Peers i.e whether we want to be like the group or not.
What is perceived behavioural control?
Perceived control, is the belief the person has about how much they can control their own behaviour. The more control people think/believe they have the stronger their intention to perform the behaviour will be- this is self-efficacy- the level of belief that you are in control. Those with perceived control (high self-efficacy) will try more and persevere for longer-so will be more successful than people who perceive themselves as not having much control.
What is intention?
The attitudes, subjective norms and perceived control will impact the behavioural intention to change
What is behaviour?
The behaviour change will happen if the INTENTION to change is in place
You ACT on your intention
(Behaviour can also be directly impacted by the factor of perceived control i.e. self efficacy- belief in their own ability to change their behaviour )
How can TPB stop addiction?
People who have a positive attitude to giving up the addiction
Will want to conform to the subjective norms of a group that is anti-addiction;
Who believes they can control their behaviour and have the resources and skills to give up the addiction
Will have an intention to give up the addiction and will successfully act on this behaviour .
How might CPB not stop addiction?
People who have a negative attitude towards giving up the addiction , who think it will be too unpleasant
Whose reference group are still addicts, and who wants to continue to belong to this group and Conform to their subjective norms
Who do not think they will be able to control their urge to smoke/ gamble/ drink/take drugs
Will not have any intention of giving up addiction and will not act on giving up addiction
How could TPB change behavioural intentions?
A negative attitude or evaluation of the behaviour combined with a belief about the negative outcome of addiction eg: smoking is a dirty habit and giving it up will be good for my health
How could TPB change subjective norms?
The perception of what people think about the addictive behaviour and whether the individual wants to conform to the group norms eg: none of my friends smoke because they think it is unhealthy. I want to be like my friends
How could TPB change perceived behavioural control?
The person believes that they can control their addictive behaviour, influenced by their assessment of internal factors and external factors eg: I have will power and patches to help me and the support of my family so I can stop smoking
How could TPB increase self-efficacy?
The greater the self belief that you are in control of the addiction, the more likely you are to change as you can persevere more and for longer
TPB: Research evidence?
Hagger et al 2011 Tested TPB with regards to alcohol related behaviours, with 486 employees from Estonia, Finland, Sweden and UK.
They found 3 factors - personal attitudes, subjective norms and perceived behavioural control all predicted behavioural intentions to limit alcohol intake . The best predictor was perceived behavioural control.
