4.42 Teaching assistants, race, and standard deviations: Researchers reported that the race of the teaching assistants (TAs) for a class had an effect on student outcome (Lusher et al., 2015). They reported that “Asian students receive a 2.3% of a standard deviation increase in course grade when the racial composition of the TAs is entirely Asian. Similarly, non-Asian students see a 3.7% of a standard deviation increase in course grade when enrolled in a class with all non-Asian TAs.” They hypothesized several reasons for this effect, including that students may see TAs of a similar race as inspiring or may simply be more comfortable learning from someone of the same race. Knowing what you know about standard deviations, explain this finding in your own words. Also, state whether this is a large effect, and explain your answer.