The third weakness of psychodynamic explanations is their lack of scientific rigour. For example, the superego/an individual’s internalised sense of right and wrong is embedded within the unconscious tripartite personality, meaning that such a concept cannot be empirically and objectively measured. Therefore, since the superego is a concept which cannot be proven wrong, this suggests that, according to Popper’s criterion of falsification, that it is unfalsifiable and therefore pseudoscientific. This does little to increase the scientific credibility of psychology