In consumer behaviour, an attitude is usually defined as a learned predisposition to respond in a consistently favourable or unfavourable way towards an object (a brand, product, service, or idea); because attitudes have a motivational pull, we often infer them from behaviour. 

A useful reminder for student marketers is that attitudes are situational. You might prefer Brand A, but still buy Brand B if it is on offer, or if you are rushing; the situation can weaken the attitude to behaviour link. 

One way to make sense of why attitudes exist is Katz’s functional theory. Katz argues attitudes can serve different purposes: utilitarian (reward, pain avoidance), value-expressive (identity and self-concept), ego-defensive (protecting self-esteem), and knowledge (creating order and meaning). This matters because two people can dislike the same advert for totally different reasons; changing their attitudes means targeting the right function. 

When you are analysing an attitude, the ABC (tricomponent) model helps:

  • Affect: feelings about the object
  • Behaviour (conation): intention or tendency to act
  • Cognition: beliefs, knowledge, and mental images 

Finally, if  the Theory of Planned Behaviour is handy: intentions are shaped by attitudes and social pressure (subjective norms), plus perceived behavioural control; whether someone thinks they can actually do the behaviour.