Weakness of psychodynamic approach?

-Methodology -Evidnece to support his theories were cse stuides, individuals that were in therapy with Freud, like Little Hans -A 5 year old boy with a phobia of horses, to suport his oedipus complex. Freud claimed that the phobias was his repressed fear of the father -Weakness, case studies can't be generalised to the rest of the population, lowering generalisability