Failure to function adequately is defined as no longer being able to cope with the demands of everyday life. (unable to maintain basic standard of nutrition and hygiene)
(FFA): Rosenhan and Seligman looked at signs associated with FFA:
No longer conforms to standard interpersonal rules (eye contact)
Experience severe personal distress
Behaviour becomes irrational/dangerous to self and others
Deviation from social norm is defined as when a person behaves in a way tat is different to how we expect people to behave. 'acceptable' (some cultures see homosexuality as abnormal)
Statistical infrequency is defined as usual behaviour and unusual behaviour that can be reliably measured (intelligence):
uses a normal distribution curve to show if a behaviour is below average, average or above average
Diagnosed as abnormal if the mental condition is rare in a population
Deviation from ideal mental health: once we have a pic of how we should be psychologically healthy then we can begin to identify who deviates from this ideal.
(DIMH): Jahoda suggests we have a good mental health if e meet the following:
No symptoms or distress
Cope with stress
independent of other ppl
Rational/perceive ourselves accurately
Realistic view of the world
Successfully work, love and enjoy leisure
self-actualise
Good self-esteem/lack guilt
S of FFA: Sensible threshold for when people need professional help/treatment services can be targeted to people who need them the most
W of FFA: Easy to label non-standard lifestyle choices as abnormal (choosing to live off grid)
S of DSN: used in clinical practice - defining characteristics of certain disorders (schizophrenia personality disorder - 'strange' characterizes thinking, behaviour and appearance)
W of DSN: Variability between social norms in different cultures
S of SI: used in clinical practice - way to asses severity of individual symptoms - usefulness
W of SI: Being unusual at one end of psychology spectrum (high IQ) doesn't mean we are abnormal.
S of DIMH: Highly comprehensive - Jahoda's criteria covers most of the reasons why we may seek help with mental health
W of DIMH: Very few achieve all of Jahoda's criteria - disheartening to see impossible set of standards to live up to