Table 9.
Non-dyslexic cases in ILTS: Cross tabulation of overall model fit, based on the “counting deficits” and individual regression fit methods applied to individual cases
| Deficit | PA only | L only | NS only | PA and L | PA and NS | L and NS | PA, L, & NS | None | Total | |
|---|---|---|---|---|---|---|---|---|---|---|
| Best Fitting Model | PA | 10 (0) | 8 (5) | 7 (7) | 3 (0) | 4 (2) | 1 (1) | 2 (0) | 169 (136) | 204 (151) |
| L | 6 (6) | 15 (10) | 6 (6) | 0 (0) | 2 (2) | 2 (2) | 3 (2) | 118 (110) | 152 (138) | |
| PS | 1 (1) | 15 (15) | 4 (2) | 4 (4) | 0 (0) | 2 (0) | 0 (0) | 152 (133) | 178 (155) | |
| Multiple | 7 (5) | 8 (6) | 11 (5) | 2 (1) | 2 (0) | 0 (0) | 1 (0) | 162 (142) | 193 (159) | |
| Total | 24 (12) | 46 (36) | 28 (20) | 9 (5) | 8 (4) | 5 (3) | 6 (2) | 601 (521) | 727 (603) | |
Note. ILTS = International longitudinal Twin Study; PA = phoneme awareness; L = language skill; PS = processing speed; NS = naming speed.