Failure to function adequately is the failure to cope with day-to-day living.

Example: Unable to maintain basic levels of nutrition and hygiene.

When

Rosenhan & Seligman (1989) suggests that some characteristics which can define failure to function adequately include:

  • When a person no longer conforms to standard interpersonal rules
    • e.g., maintaining eye contact and respecting personal space
  • When a person experiences severe personal distress
  • When a person’s behaviour becomes irrational or dangerous to themselves or others

Evaluation

No clear definition of what is a normal response

Type: Limitation

  • People often experience personal distress and recognise that their behaviour is undesirable
  • However, at times people are content with their behaviour and causing others to become distressed by it
  • Therefore, meaning that whether a behaviour is defined as normal or abnormal depends on who is making the judgement

Failure to function adequately may be an incomplete definition

Type: Limitation

  • Some abnormal behaviours can be functional
    • Depression may lead to extra attention for the individual
    • The attention is rewarding and therefore has a function
  • Therefore failure to function adequately is an incomplete definition as it fails to distinguish between dysfunctional behaviours and those that have some function for the individual

Cultural relativism

Type: Limitation

  • Based on Western culture’s ideals and beliefs
  • Applying them to non-Western cultures would be inappropriate
  • Therefore, the definition is culture-bound in that it may apply