Table 2.

Multipliers for learning indices in Figure 2C and 2D

Block	Accuracy	Multiplier Formula	Multiplier Value
1	28.8	M1 = T1/B1	0.62
2	58.0	M2 = T1/B2	0.31
3	69.8	M3 = T1/B3	0.25
4	78.8	M4 = T1/B4	0.23
5	79.9	M5 = T1/B5	0.22
6	81.5	M6 = T1/B6	0.21

Abbreviations: B, block; M, multiplier; T, trial; 1–6, number of B, M or T. For accuracy or any variable that is averaged across a block of trials or sessions, the numerator for the multiplier is the first trial (or first session), as presumably little learning has occurred. The denominator is the average accuracy for that block. Again, the learning index is the sum of the products of TTC and the appropriate multipliers for all problems and the multipliers are used both for the control group and the treatment groups.