Let’s extend Aronson’s study (discussed in Section 8.5) to include women (who, unfortunately, often don’t have as strong an investment in their skills in mathematics as men.

They probably also are not as tied up in doing better than someone else). For women we expect means of 8.5 and 8.0 for the Control and Threatened condition. Further assume that the estimated standard deviation of 3.10 remains reasonable and that their sample size will be 25. Calculate the power of this experiment to show an effect of stereotyped threat in women.