Researchers Sync and Smith reported a significant correlation between children's reading level and intelligence measured as an IQ score (r=.23). The same researches reported that the correlation between math ability and knowledge of social studies was not significant (r=.15). Explain these results as if you were writing to a person who has never had a course in statistics.
Be sure to discuss
a. significance,
b. the direction and strength of the relationship,
c. causality, and
r2 where applicable.