13.23 Bilingualism, continued. Refer to the previous exercise.

  1. (a) If bilingualism helps with brain functioning as we age, explain why we’d expect to find an interaction between age and lingualism. Also create an interaction plot of what sort of pattern we’d expect.

  2. (b) Analyze the reaction times using analysis of variance. Report the test statistics, degrees of freedom, and P-values.

  3. (c) Based on part (b), write a short paragraph summarizing your findings.