19. Pecukonis (1990), as part of a larger study, measured ego development (a measure of overall maturity) and ability to empathize with others among a group of 24 aggressive adolescent girls in a residential treatment center. The girls were divided into high- and low-ego development groups, and the empathy (“cognitive empathy”) scores of these two groups were compared. In his results section, Pecukonis reported, “The average score on cognitive empathy for subjects scoring high on ego development was 22.1 as compared with 16.3 for low scorers, . . . p 6 .005” (p. 68). Explain this result to a person who has never had a course in statistics. (Focus on the meaning of this result in terms of the general logic of hypothesis testing and statistical significance.)