gathers a range of information on an individual, group or institution, mainly data is collected using observations and interviews.
type of data collected is usually qualitative in the form of words due to the use of interviews, however quantitative data can be included with the use of experimental techniques, observations and content analysis
uses in clinical psychology- Tan was only able to communicate using the word 'Tan', his other functions such as intelligence and the ability to understand language was left unaffected. This case study helped to identify Broca's area, the location in the left hemisphere associated with speech production
Uses of case studies in psychodynamics- Freud used these, eg little hans and the phallic stage (oedipus complex), phobia of horses- symbolic of the fear of his father, supports his theory of childhood development,
