A Psychologist Wishes to Have Participants Rate Two Different Sets

question 17

Essay

A psychologist wishes to have participants rate two different sets of inkblots (labeled A and B)for their "emotionality." The inkblots differ in their use of color.Ten inkblots in set A are created in shades of gray; ten inkblots in set B use shades of red,blue,and yellow.The psychologist hypothesizes that color will influence participants' ratings of emotionality.Each participant will rate all twenty inkblots.
If the psychologist would like to have 50 ratings for each inkblot,how many participants will the psychologist need to recruit for the experiment?

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