Many have compared Freud's idea of the mind to an iceberg. A key point to this metaphor is that the vast majority of the iceberg is under the water. If that were the case and you were standing on the deck of a ship in Alaska, what part of the mind would you see above the water? conscious mind, unconscious mind, superego, change of mind.
Occam's razor is most commonly described as "the simplest answer is most often correct." There is a fine line between the truth and pseudoscience.
Choose the series of evidence below that best matches the hierarchical order of evidence from weakest to strongest: Controlled randomly assigned experiment, commonsense belief, personal experiences, anecdote. Correlations, statement of authority, case study, commonsense belief, anecdotes. Commonsense belief, anecdote, personal experiences, controlled randomly assigned experiment. All evidence is equal.
Broca's, Wernicke's.
When studies are replicated and produce the same or similar results as the original study, it gives greater validity to the findings.