Comparison between the differences in the two reinforced conditions indicated that the mean differences were greater in the positive than the negative condition, but this difference did not reach statistical significance, F (1, 31) = 3.70, p = .06 (See Table 1 .) 3.
2
0.0600
0.0600
The sentences
Our empirical data also showed this increase in RT difference, but superimposed on an overall trend for children to reduce their response time.