You Recently Compared Your Mother's Recent IQ Scores with Those

You recently compared your mother's recent IQ scores with those from the test she took 10 years ago. What combination of changes in verbal or performance subscale scores were you MOST shocked to find?

A) mild increase in verbal, mild decrease in performance
B) no change in verbal, no change in performance
C) no change in verbal, moderate increase in performance
D) moderate decrease in verbal, moderate increase in performance