Characteristics of Addiction (AQA GCSE Psychology)

Revision Note

Claire Neeson

Written by: Claire Neeson

Reviewed by: Lucy Vinson

The difference between addiction & dependence

  • Addiction is a term that is not always used accurately in common parlance, for example:

    • I’m so addicted to chocolate’

    • ‘Without Love Island in my life I don’t know what I’d do’

    • ‘I am absolutely hooked on this new lip gloss, it’s addictive’

  • Addiction is the physical and/or psychological need to engage in addictive behaviour e.g. drug-taking, drinking alcohol, gambling, shopping

  • Physical addiction is the physiological state of adaptation to the addictive behaviour, resulting in tolerance i.e. the more a person becomes addicted, the higher ‘dose’ of the addictive behaviour they need to get the same effect 

  • Addiction can be seen in the craving for the addictive behaviour

  • When the addictive behaviour ceases (e.g. the time between drug-taking episodes) this produces withdrawal which could include:

    • experiencing tremors/shakes

    • sweating

    • obsessive thoughts about the addictive behaviour

    • headaches

    • anxiety, irritability, mood swings

  • Dependence is the ‘gateway’ to addiction as it can be seen in the compulsion to experience the addictive behaviour for its pleasurable effect, rather than for its stated effect, for example:

    • Someone needs new clothes for work but the pleasure they experience from shopping becomes all-consuming, meaning that the original intention to shop for a purpose is lost to the general ‘thrill’ of shopping itself

    • Someone needs pain medication for a bad back but once their back is better they continue to take the medication for the ‘high’ it gives them

  • Physical and psychological dependence overlap, with key behaviours being over-doing the behaviour, engaging in the behaviour even when the person knows that it is bad for them, problems maintaining everyday activities and the inability to stop the behaviour

The difference between substance misuse & abuse

  • Substance misuse refers to a drug being used for purposes not originally intended by the drug manufacturer or the prescribing doctor

  • Some examples of substance misuse include:

    • Taking more of the substance than the recommended dose e.g. 40mg instead of 20mg of an antidepressant

    • Taking someone else’s medication or a substance that has not been prescribed for you

    • Taking a substance for purposes other than the intended use e.g. ADHD medication to stay awake for a gaming session

    • Leaving longer or shorter gaps between doses than the guidelines recommend

  • Substance misuse becomes substance abuse when the user takes the substance in order to get a ‘hit’ from it i.e. feeling ‘high’

  • Some examples of substance abuse include:

    • Drinking alcohol excessively to cope with grief

    • Taking sedatives to escape from trauma

    • Smoking nicotine or marijuana to deal with stress

  • Substance abuse can be thought of as ‘self-medicating’ as it involves an individual ‘prescribing’ their own way of dealing with physical and/or psychological problems

  • The aim of self-medication is for the individual to feel better and to experience relief from the situation/stressor

Worked Example

Here is an example of a question you might be asked on this topic - for AO2.

AO2: You need to apply your knowledge and understanding, usually referring to the ‘stem’ in order to do so (the stem is the example given before the question)

A researcher conducted a survey into the number of people in one town from a sample of 80, who stated that they were dependent on alcohol. The results are shown below:

Dependent on alcohol

24

Not dependent on alcohol

56

 Question: What is the ratio to its simplest form of people who said they were dependent on alcohol? Show your workings.  [2]

Model answer:

  • The ratio of people dependent on alcohol is 24:80.

  • 24:80 to its simplest form is 3:10 (24 and 80 are both divisible by 8).

Last updated:

You've read 0 of your 5 free revision notes this week

Sign up now. It’s free!

Join the 100,000+ Students that ❤️ Save My Exams

the (exam) results speak for themselves:

Did this page help you?

Claire Neeson

Author: Claire Neeson

Expertise: Psychology Content Creator

Claire has been teaching for 34 years, in the UK and overseas. She has taught GCSE, A-level and IB Psychology which has been a lot of fun and extremely exhausting! Claire is now a freelance Psychology teacher and content creator, producing textbooks, revision notes and (hopefully) exciting and interactive teaching materials for use in the classroom and for exam prep. Her passion (apart from Psychology of course) is roller skating and when she is not working (or watching 'Coronation Street') she can be found busting some impressive moves on her local roller rink.

Lucy Vinson

Author: Lucy Vinson

Expertise: Psychology Subject Lead

Lucy has been a part of Save My Exams since 2024 and is responsible for all things Psychology & Social Science in her role as Subject Lead. Prior to this, Lucy taught for 5 years, including Computing (KS3), Geography (KS3 & GCSE) and Psychology A Level as a Subject Lead for 4 years. She loves teaching research methods and psychopathology. Outside of the classroom, she has provided pastoral support for hundreds of boarding students over a four year period as a boarding house tutor.