An industrial organizational psychologist investigated the crossed effects of two variables€” being a member of a team sport in high school and extroversion level€”on how well professors are liked by their colleagues. The dependent variable was the interval-level Colleague Collegiality Scale (CCS). (Scores on the CCS range from 0 to 24; higher scores indicate greater liking by colleagues.) From a national and representative sample of college professors, the psychologist randomly selected professors until there were eight in  each cell. The table below shows the cell means (and standard deviations). SS_Rowswas 36.13, SS_Columns= 1.13, SS_Interaction= 36.13, and SS_Within= 217.50.

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Extroverted Introverted 16.50 (2.51) 12.25 (3.62) Played a Team Sport in High School Did Not Play a Team Sport in High School 14.00 (2.39) 14.00 (2.45)