Figure 1.

Overall research design including pretreatment definition testing of Set 1 and Set 2 words (white box); first treatment focusing exclusively on Set 1 words, definition testing of Set 1 and Set 2 words immediately and 2 weeks post–Treatment 1 (black boxes); and second treatment focusing exclusively on Set 2 words, definition testing of Set 1 and Set 2 words immediately and 2 weeks post–Treatment 2 (black boxes). During treatment, only the treated words were tested via naming and definition tasks. Testing during treatment is indicated by an asterisk next to the number of exposures when testing occurred.