untestable, difficult to test scientifically, uses case studies & interviews, no empirical data to analyse
slightly nomothetic - applies generlaised stages to everyone, but does still look at individual cases
slightly reductionistic, oversimplifies human behaviour, as focuses on unconscious thoughts & how they affect us, but still accounts for environmental experiences
retrospective - early traumatic experiences in childhood may not appear in adulthood, data may be unreliable
psychic & soft determinism - claims abnormal behaviour results from unconscious psychic conflict related to innate biological drives
that we have little control over personality development
traumatic event in childood gurantees abnormal behaviour
ethical implication - people can't be blamed for abnormal behaviour, but that parents are responsible for their childrens
current experiences - doesn't account for P's current difficulties