Table A6.
The set of problems used in the non-symbolic and symbolic addition tasks for Experiment 2 with the characteristics of each problem in relation to possible alternative strategies.
| Ratio | Addends | Comparison number | Range strategy predictor* | Difference | CQ Type# |
|---|---|---|---|---|---|
| 5:9 | 31+29 | 33 | Addend | Small (2) | A |
| 5:9 | 34+31 | 36 | Addend | Small (2) | B |
| 5:9 | 12+13 | 14 | Foil | Small (1) | B |
| 5:9 | 11+11 | 12 | Foil | Small (1) | A |
| 5:9 | 16+17 | 60 | Foil | Large (43) | A |
| 5:9 | 18+18 | 65 | Foil | Large (47) | B |
| 5:9 | 9+5 | 25 | Addend | Medium (16) | B |
| 5:9 | 5+7 | 22 | Addend | Medium (15) | A |
| 5:8 | 33+28 | 38 | Addend | Small (5) | B |
| 5:8 | 30+26 | 35 | Addend | Small (5) | A |
| 5:8 | 10+11 | 13 | Foil | Small (2) | B |
| 5:8 | 11+13 | 15 | Foil | Small (2) | A |
| 5:8 | 20+18 | 61 | Foil | Large (41) | B |
| 5:8 | 17+18 | 56 | Foil | Large (38) | A |
| 5:8 | 5+8 | 21 | Addend | Medium (13) | B |
| 5:8 | 8+7 | 24 | Addend | Medium (16) | A |
| 5:7 | 27+25 | 37 | Addend | Medium (10) | A |
| 5:7 | 28+31 | 42 | Addend | Medium (11) | B |
| 5:7 | 10+8 | 13 | Foil | Small (3) | B |
| 5:7 | 12+12 | 17 | Foil | Small (5) | A |
| 5:7 | 21+16 | 52 | Foil | Large (31) | A |
| 5:7 | 18+24 | 59 | Foil | Large (35) | B |
| 5:7 | 7+6 | 18 | Addend | Medium (11) | B |
| 5:7 | 8+9 | 24 | Addend | Medium (15) | A |
#
Continuous Quantity Type: (A) Dot size, summed dot area, total contour length, and density are positively correlated with number while array size is correlated negatively with number; (B) Dot size, summed dot area, total contour length, and density are negatively correlated with number while array size is positively correlated with number.
*
Indicates whether the addend or foil predicts the correct answer according to the range strategy tested above (see Table A2).