Understanding what counts as "abnormal" behaviour isn't as straightforward as...
Understanding Abnormality: Key Concepts for AQA A-Level Psychology











Introduction to Psychopathology
Psychopathology is simply the study of mental disorders - looking at their causes, symptoms, and treatments. It's basically how psychologists try to understand what goes wrong with our minds and how to fix it.
The "Four Ds" give us a quick way to spot potential mental health issues: deviance (acting differently), distress (feeling awful), dysfunction (can't cope with daily life), and danger (risk to self or others). Think of these as red flags that suggest someone might need professional help.
Quick Check: If someone shows multiple "Ds", it's worth investigating further - but remember, context is everything!
Deviation from Social Norms
This approach says you're abnormal if you break society's unwritten rules about how to behave. Sounds simple, right? If everyone else queues politely and you push in, you're being deviant.
The big advantage is that it's dead easy for doctors to spot when someone's breaking social rules - whether that's shouting at strangers or wearing pyjamas to a job interview. This makes it quick to identify who might need help.
But here's where it gets messy. Until the 1970s, being gay was considered a mental illness in the UK and USA. Unmarried mothers were locked up in asylums for being "morally insane." Both seem ridiculous now, showing how cultural bias can lead to harmful diagnoses.

Problems with Social Norms
The biggest issue is telling the difference between harmless eccentricity and genuine mental illness. Someone who dyes their hair bright purple isn't the same as someone experiencing paranoid delusions - but both technically "break the rules."
Criminal behaviour creates another headache. Not every law-breaker has a mental disorder, but serial killers often do get diagnosed as psychopaths. It's nearly impossible to work out if someone's just choosing to be bad or if they're genuinely mentally ill.
This definition is also way too simplistic. Real abnormality needs to be understood in context - your behaviour, your background, your circumstances all matter.
Remember: Breaking social norms doesn't automatically mean you're mentally ill - sometimes it just means you're different!
Statistical Infrequency
This approach uses maths to define abnormality. If your behaviour falls outside the "normal" range on a bell curve (more than two standard deviations from average), you're classed as abnormal.
The beauty of this method is its objectivity. Instead of relying on personal opinions, clinicians can use hard data to make diagnoses. No bias, no cultural judgements - just pure statistics.

Why Statistics Can Mislead
But here's the problem: being statistically rare doesn't always mean being mentally ill. Having an IQ of 160 is incredibly uncommon, but we don't treat geniuses as abnormal. Same goes for being exceptionally talented at music or speaking multiple languages.
This definition completely ignores whether the rare trait is actually harmful or not. It could lead to "treating" people who are perfectly happy and functional, just because they're different from the majority.
The method works well for measuring severity of genuine disorders, but it's useless for deciding what counts as a disorder in the first place.
Think About It: Would you want to be labelled abnormal just because you're exceptionally good at something?
Deviation from Ideal Mental Health
Instead of focusing on what's wrong, this approach asks: what does perfect mental health look like? Marie Jahoda identified six criteria for ideal mental health, including personal growth, accurate perception of reality, and autonomy.
This gives both patients and therapists clear targets to work towards. Rather than just removing symptoms, you're actively building positive mental health skills. It's holistic - looking at the whole person, not just isolated behaviours.

The Impossible Standard
The problem? Jahoda's criteria are basically impossible to achieve fully. Even mentally healthy people might struggle with self-actualisation or perfect environmental mastery. Using all six criteria could lead to over-diagnosing nearly everyone.
There's also massive cultural bias here. The emphasis on independence and personal growth screams "Western individualistic culture." In collectivist societies, putting family needs before personal growth is normal and healthy, not abnormal.
Plus, how do you actually measure whether someone has an "accurate perception of reality"? It's incredibly subjective and open to interpretation, which defeats the point of having clear criteria.
Reality Check: Nobody meets all these criteria all the time - that doesn't make us all mentally ill!
Failure to Function Adequately
This definition focuses on practical daily living - can you wash, eat, work, and relate to others normally? If you can't cope with everyday tasks and it causes distress to you or others, you might be abnormal.
Rosenhan and Seligman identified seven key indicators, including suffering, maladaptiveness, unpredictability, and observer discomfort. The more boxes you tick, the more likely you are to be considered abnormal.

Measuring Daily Functioning
The Global Assessment of Functioning (GAF) Scale rates people from 0-100 based on how well they manage daily life. Someone scoring 91-100 has superior functioning with no symptoms, while someone scoring 0-10 can't maintain basic hygiene and poses serious danger.
This approach is brilliant because it focuses on observable behaviours that genuinely affect quality of life. It gives people a practical checklist to recognise when they need help, and it respects the personal experience of suffering.
However, it still struggles with cultural differences - what counts as "adequate functioning" varies enormously between societies. It also has the classic cause-and-effect problem: are you not functioning because you're mentally ill, or are you mentally ill because life circumstances prevent you from functioning?
Bottom Line: This approach is the most practical, but cultural context still matters enormously.
The main takeaway? Each definition of abnormality has serious flaws, which is why modern psychology tends to use multiple approaches together rather than relying on just one. Understanding these limitations helps you think critically about mental health diagnoses and avoid oversimplified judgements about what's "normal."





We thought you’d never ask...
Similar content
Most popular content: Abnormal Psychology
2Assessing Abnormality: Functionality
Explore the concept of 'failure to function adequately' in psychology, focusing on its role in diagnosing abnormality. This summary covers key characteristics such as maladaptive behavior, observer distress, and the impact of environmental factors. Understand the strengths and weaknesses of this definition, including its implications for mental health treatment. Ideal for AQA Psychology students studying psychopathology and definitions of abnormality.
Ideal Mental Health Criteria
Explore the concept of deviation from ideal mental health, focusing on its characteristics, strengths, and limitations. This summary covers key points such as the positive perspective on mental health, cultural biases, and the implications for understanding psychological disorders. Ideal for psychology students studying psychopathology and definitions of abnormality.
Most popular content in Psychology
9Social Influence Overview
Explore key concepts in social influence, including conformity, obedience, and minority influence. This comprehensive summary covers essential studies such as Milgram's experiment, Asch's conformity tests, and the Stanford prison experiment, providing insights into the psychological mechanisms behind social behavior. Ideal for A-Level revision.
Key Psychological Approaches
Explore essential concepts in A-Level AQA Psychology, including the Biological, Behavioural, Cognitive, Humanistic, and Psychodynamic approaches. This comprehensive summary covers key theories, evaluations, and applications, providing a solid foundation for understanding psychological principles. Ideal for exam preparation and revision.
AQA A Level Sociology Research Methods
Includes all research methods
Biopsychology Key Concepts
Explore essential biopsychology concepts including circadian rhythms, brain structure, and neurobiology. This comprehensive summary covers the nervous system, hormonal coordination, and the impact of brain plasticity on behavior. Ideal for AQA A Level Psychology revision.
A Level AQA Biopsychology Content Mindmap
Biopsychology Content Mind Maps, DOES NOT CONTAIN RESEARCH OR EVALUATION
Key Concepts in Social Influence
Explore essential theories and experiments in social influence, including conformity, obedience, and minority influence. This summary covers key studies like Milgram's experiment, Asch's conformity tests, and the Stanford prison experiment, providing a comprehensive overview for AQA A Level psychology students.
Issues and Debates
AQA paper 3 alevel psychology topic 9 - issues and debates - full active recall questions - notion.
Psychological Approaches Overview
Explore the foundational psychological approaches including Behaviorism, Cognitive Psychology, and the Biological Approach. This summary covers key concepts such as classical and operant conditioning, social learning theory, and the emergence of cognitive neuroscience. Ideal for AQA AS Psychology students preparing for exams.
Psychopathology
Condensed notes from textbook
Most popular content
9Comprehensive Crime & Deviance Overview
Explore an extensive revision of crime and deviance topics, including theories, types of crime, and the impact of media. This resource covers key concepts such as Marxism, functionalism, gender and crime, and the influence of globalization on criminal behavior. Ideal for students seeking a thorough understanding of criminology and its various theories. Type: Full Topic Revision.
Sociological Theories Overview
Comprehensive revision of key sociological theories including Functionalism, Marxism, Feminism, and Interpretivism. Explore concepts like value freedom, identity formation, and the critique of social control. Ideal for AQA A-Level Sociology students preparing for exams. This summary covers essential theories and their implications in sociology, providing a clear understanding of each perspective.
Sociology of Families: Comprehensive Revision
Dive into an extensive overview of family dynamics, perspectives, and patterns in sociology. This resource covers key concepts such as family diversity, gender roles, marriage, and the impact of social policies on family structures. Perfect for A-Level Sociology students preparing for Paper 2.
Sociology of Education Overview
Explore comprehensive A-Level Sociology notes on the education system, covering key theories, policies, and sociological perspectives. This resource includes insights on marketisation, gender roles, cultural deprivation, and educational inequalities, providing a thorough understanding of how education shapes social stratification and individual achievement. Ideal for exam preparation and in-depth study.
Crime and Deviance AQA A-level sociology
AQA A-level crime and deviance topic notes
Chemistry paper 2
Chem paper 2 notes
A-Level Biology Year 1 Overview
Comprehensive summary of AQA A-Level Biology Year 1, covering key topics such as cellular structure, protein synthesis, immune response, gas exchange, and more. Ideal for exam preparation and understanding biological concepts. Includes detailed insights into cellular processes, biological classification, and the circulatory system.
AQA Biology: Key Concepts
Explore essential AQA Biology topics including Photosynthesis, Respiration, Homeostasis, Genetics, and Ecology. This comprehensive knowledge organizer covers key concepts such as energy transfer, hormonal control, and genetic variation, providing a solid foundation for your studies. Ideal for exam preparation and understanding biological processes.
Biology P2: Evolution & Adaptation
Explore key concepts in AQA GCSE Biology P2, focusing on evolution, natural selection, genetic engineering, and adaptations in organisms. This summary covers essential topics such as DNA structure, speciation, and the impact of environmental changes on biodiversity. Ideal for exam preparation and understanding complex biological processes.
Students love us — and so will you.
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Understanding Abnormality: Key Concepts for AQA A-Level Psychology
Understanding what counts as "abnormal" behaviour isn't as straightforward as you might think. Psychologists use four main approaches to define abnormality, each with its own strengths and major flaws that could affect how mental health conditions are diagnosed.

Introduction to Psychopathology
Psychopathology is simply the study of mental disorders - looking at their causes, symptoms, and treatments. It's basically how psychologists try to understand what goes wrong with our minds and how to fix it.
The "Four Ds" give us a quick way to spot potential mental health issues: deviance (acting differently), distress (feeling awful), dysfunction (can't cope with daily life), and danger (risk to self or others). Think of these as red flags that suggest someone might need professional help.
Quick Check: If someone shows multiple "Ds", it's worth investigating further - but remember, context is everything!
Deviation from Social Norms
This approach says you're abnormal if you break society's unwritten rules about how to behave. Sounds simple, right? If everyone else queues politely and you push in, you're being deviant.
The big advantage is that it's dead easy for doctors to spot when someone's breaking social rules - whether that's shouting at strangers or wearing pyjamas to a job interview. This makes it quick to identify who might need help.
But here's where it gets messy. Until the 1970s, being gay was considered a mental illness in the UK and USA. Unmarried mothers were locked up in asylums for being "morally insane." Both seem ridiculous now, showing how cultural bias can lead to harmful diagnoses.

Problems with Social Norms
The biggest issue is telling the difference between harmless eccentricity and genuine mental illness. Someone who dyes their hair bright purple isn't the same as someone experiencing paranoid delusions - but both technically "break the rules."
Criminal behaviour creates another headache. Not every law-breaker has a mental disorder, but serial killers often do get diagnosed as psychopaths. It's nearly impossible to work out if someone's just choosing to be bad or if they're genuinely mentally ill.
This definition is also way too simplistic. Real abnormality needs to be understood in context - your behaviour, your background, your circumstances all matter.
Remember: Breaking social norms doesn't automatically mean you're mentally ill - sometimes it just means you're different!
Statistical Infrequency
This approach uses maths to define abnormality. If your behaviour falls outside the "normal" range on a bell curve (more than two standard deviations from average), you're classed as abnormal.
The beauty of this method is its objectivity. Instead of relying on personal opinions, clinicians can use hard data to make diagnoses. No bias, no cultural judgements - just pure statistics.

Why Statistics Can Mislead
But here's the problem: being statistically rare doesn't always mean being mentally ill. Having an IQ of 160 is incredibly uncommon, but we don't treat geniuses as abnormal. Same goes for being exceptionally talented at music or speaking multiple languages.
This definition completely ignores whether the rare trait is actually harmful or not. It could lead to "treating" people who are perfectly happy and functional, just because they're different from the majority.
The method works well for measuring severity of genuine disorders, but it's useless for deciding what counts as a disorder in the first place.
Think About It: Would you want to be labelled abnormal just because you're exceptionally good at something?
Deviation from Ideal Mental Health
Instead of focusing on what's wrong, this approach asks: what does perfect mental health look like? Marie Jahoda identified six criteria for ideal mental health, including personal growth, accurate perception of reality, and autonomy.
This gives both patients and therapists clear targets to work towards. Rather than just removing symptoms, you're actively building positive mental health skills. It's holistic - looking at the whole person, not just isolated behaviours.

The Impossible Standard
The problem? Jahoda's criteria are basically impossible to achieve fully. Even mentally healthy people might struggle with self-actualisation or perfect environmental mastery. Using all six criteria could lead to over-diagnosing nearly everyone.
There's also massive cultural bias here. The emphasis on independence and personal growth screams "Western individualistic culture." In collectivist societies, putting family needs before personal growth is normal and healthy, not abnormal.
Plus, how do you actually measure whether someone has an "accurate perception of reality"? It's incredibly subjective and open to interpretation, which defeats the point of having clear criteria.
Reality Check: Nobody meets all these criteria all the time - that doesn't make us all mentally ill!
Failure to Function Adequately
This definition focuses on practical daily living - can you wash, eat, work, and relate to others normally? If you can't cope with everyday tasks and it causes distress to you or others, you might be abnormal.
Rosenhan and Seligman identified seven key indicators, including suffering, maladaptiveness, unpredictability, and observer discomfort. The more boxes you tick, the more likely you are to be considered abnormal.

Measuring Daily Functioning
The Global Assessment of Functioning (GAF) Scale rates people from 0-100 based on how well they manage daily life. Someone scoring 91-100 has superior functioning with no symptoms, while someone scoring 0-10 can't maintain basic hygiene and poses serious danger.
This approach is brilliant because it focuses on observable behaviours that genuinely affect quality of life. It gives people a practical checklist to recognise when they need help, and it respects the personal experience of suffering.
However, it still struggles with cultural differences - what counts as "adequate functioning" varies enormously between societies. It also has the classic cause-and-effect problem: are you not functioning because you're mentally ill, or are you mentally ill because life circumstances prevent you from functioning?
Bottom Line: This approach is the most practical, but cultural context still matters enormously.
The main takeaway? Each definition of abnormality has serious flaws, which is why modern psychology tends to use multiple approaches together rather than relying on just one. Understanding these limitations helps you think critically about mental health diagnoses and avoid oversimplified judgements about what's "normal."





We thought you’d never ask...
Similar content
Most popular content: Abnormal Psychology
2Assessing Abnormality: Functionality
Explore the concept of 'failure to function adequately' in psychology, focusing on its role in diagnosing abnormality. This summary covers key characteristics such as maladaptive behavior, observer distress, and the impact of environmental factors. Understand the strengths and weaknesses of this definition, including its implications for mental health treatment. Ideal for AQA Psychology students studying psychopathology and definitions of abnormality.
Ideal Mental Health Criteria
Explore the concept of deviation from ideal mental health, focusing on its characteristics, strengths, and limitations. This summary covers key points such as the positive perspective on mental health, cultural biases, and the implications for understanding psychological disorders. Ideal for psychology students studying psychopathology and definitions of abnormality.
Most popular content in Psychology
9Social Influence Overview
Explore key concepts in social influence, including conformity, obedience, and minority influence. This comprehensive summary covers essential studies such as Milgram's experiment, Asch's conformity tests, and the Stanford prison experiment, providing insights into the psychological mechanisms behind social behavior. Ideal for A-Level revision.
Key Psychological Approaches
Explore essential concepts in A-Level AQA Psychology, including the Biological, Behavioural, Cognitive, Humanistic, and Psychodynamic approaches. This comprehensive summary covers key theories, evaluations, and applications, providing a solid foundation for understanding psychological principles. Ideal for exam preparation and revision.
AQA A Level Sociology Research Methods
Includes all research methods
Biopsychology Key Concepts
Explore essential biopsychology concepts including circadian rhythms, brain structure, and neurobiology. This comprehensive summary covers the nervous system, hormonal coordination, and the impact of brain plasticity on behavior. Ideal for AQA A Level Psychology revision.
A Level AQA Biopsychology Content Mindmap
Biopsychology Content Mind Maps, DOES NOT CONTAIN RESEARCH OR EVALUATION
Key Concepts in Social Influence
Explore essential theories and experiments in social influence, including conformity, obedience, and minority influence. This summary covers key studies like Milgram's experiment, Asch's conformity tests, and the Stanford prison experiment, providing a comprehensive overview for AQA A Level psychology students.
Issues and Debates
AQA paper 3 alevel psychology topic 9 - issues and debates - full active recall questions - notion.
Psychological Approaches Overview
Explore the foundational psychological approaches including Behaviorism, Cognitive Psychology, and the Biological Approach. This summary covers key concepts such as classical and operant conditioning, social learning theory, and the emergence of cognitive neuroscience. Ideal for AQA AS Psychology students preparing for exams.
Psychopathology
Condensed notes from textbook
Most popular content
9Comprehensive Crime & Deviance Overview
Explore an extensive revision of crime and deviance topics, including theories, types of crime, and the impact of media. This resource covers key concepts such as Marxism, functionalism, gender and crime, and the influence of globalization on criminal behavior. Ideal for students seeking a thorough understanding of criminology and its various theories. Type: Full Topic Revision.
Sociological Theories Overview
Comprehensive revision of key sociological theories including Functionalism, Marxism, Feminism, and Interpretivism. Explore concepts like value freedom, identity formation, and the critique of social control. Ideal for AQA A-Level Sociology students preparing for exams. This summary covers essential theories and their implications in sociology, providing a clear understanding of each perspective.
Sociology of Families: Comprehensive Revision
Dive into an extensive overview of family dynamics, perspectives, and patterns in sociology. This resource covers key concepts such as family diversity, gender roles, marriage, and the impact of social policies on family structures. Perfect for A-Level Sociology students preparing for Paper 2.
Sociology of Education Overview
Explore comprehensive A-Level Sociology notes on the education system, covering key theories, policies, and sociological perspectives. This resource includes insights on marketisation, gender roles, cultural deprivation, and educational inequalities, providing a thorough understanding of how education shapes social stratification and individual achievement. Ideal for exam preparation and in-depth study.
Crime and Deviance AQA A-level sociology
AQA A-level crime and deviance topic notes
Chemistry paper 2
Chem paper 2 notes
A-Level Biology Year 1 Overview
Comprehensive summary of AQA A-Level Biology Year 1, covering key topics such as cellular structure, protein synthesis, immune response, gas exchange, and more. Ideal for exam preparation and understanding biological concepts. Includes detailed insights into cellular processes, biological classification, and the circulatory system.
AQA Biology: Key Concepts
Explore essential AQA Biology topics including Photosynthesis, Respiration, Homeostasis, Genetics, and Ecology. This comprehensive knowledge organizer covers key concepts such as energy transfer, hormonal control, and genetic variation, providing a solid foundation for your studies. Ideal for exam preparation and understanding biological processes.
Biology P2: Evolution & Adaptation
Explore key concepts in AQA GCSE Biology P2, focusing on evolution, natural selection, genetic engineering, and adaptations in organisms. This summary covers essential topics such as DNA structure, speciation, and the impact of environmental changes on biodiversity. Ideal for exam preparation and understanding complex biological processes.
Students love us — and so will you.
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.