What was Freud's term for life instincts?

It is clear that during the ____ human began to use boats and trade with others

a. Upper Paleolithic period b. Lower Mesozoic period c. Middle Cenozoic period d. Lower Jurassic period

Which of the following CANNOT be used to verify the accuracy of verbal reports in a perception experiment?

a. reaction time b. measuring objective responses that depend on accurate perception of the stimulus c. using objectively verifiable stimuli (e.g., strings of letters presented on a tachistoscope) d. confidence ratings made by the observers