Table 5.

Percentage (%) of definition responses receiving a score of 0, 1, 2, or 3 at pretreatment and posttreatment for untreated control words and treated words.

Variable	0	1	2	3
Pretreatment a
Untreated control words	96	3	1	0
Treated words	97	2	1	0
Posttreatment b
Untreated control words	95	3	2	0
Treated words	79	8	9	4

Note. Scoring was as follows: 0 points for an incorrect or absent definition, 1 point for clearly appropriate use of the word in a sentence or for a vague definition, 2 points for a conventional definition that lacks one or more critical elements, and 3 points for a complete and accurate definition including all critical elements. For analysis, scores of 0 and 1 were aggregated (i.e., incorrect) and scores of 2 and 3 were aggregated (i.e., correct).

^aPercentage out of 810 responses (27 children × 30 words).

^bPercentage out of 780 responses (26 children × 30 words).