Provides useful in improving the
experiences of people with mental
health problems.
E.g. Rosenhan's study led to a revision of the way that people
with mental health problems are both diagnosed and treated.
Similarly the study by Griffiths suggests that a type of cognitive
behavioural therapy may be successful with addicted
gamblers.
The development and use of
psychometric tests to measure the
differences between individuals in
qualities such as personality and
intelligence.
These
psychometric tests
provide reliable and
quantitative data
which can easily be
analysed and
therefore similarities
and differences
between individuals
can be discovered.
Psychometric tests were
used in the study of multiple
personality by Thigpen and
Cleckley. However it may of
had observer bias.
Reliance on dispositional explanations at the expense of
situational explanations. That is the individual differences
approach explains individual differences as resulting from a
person's own characteristics or disposition and has a tendency
to ignore external factors such as the situation a person is in.
E.g. many of Eve's
difficulties could also be
explained by the
expectations of being a wife
in the US in the 1950s.
Ethical issues raised with labelling people as
being different. The tendency to label people as
being different, abnormal and so on can have a
negative effect on individuals.
Rosenhan was particularly critical about both the reliability and negative
effects of labelling. Furthermore such labels particularly negative ones can
lead to a self fulfilling prophecy in which expectations about a person (or a
group of people) can come true simply because of those expectations.