Table 2 TOMM40 ‘523’ poly-T repeat length genotype and cognitive ability—adjusted for age 11 IQ
Cognitive test | Step 1 Whole sample | Step 2 ɛ3/ɛ4 genotype subgroup only | Step 3 ɛ3/ɛ3 genotype subgroup only | ||||||
|---|---|---|---|---|---|---|---|---|---|
(d.f.) F statistics | P | Partial η2 | (d.f.) F statistics | P | Partial η2 | (d.f.) F statistics | P | Partial η2 | |
General factor: intelligence (g) | 5, 753=1.52 | 0.182 | 0.010 | (1, 186)=1.04 | 0.309 | 0.006 | (2, 418)=0.92 | 0.401 | 0.004 |
Digit span backwards | 5, 762=0.08 | 0.995 | 0.001 | (1, 187)=0.07 | 0.786 | 0.000 | (2, 426)=0.74 | 0.476 | 0.003 |
Matrix reasoning | 5, 761=0.73 | 0.602 | 0.005 | (1, 187)=1.02 | 0.314 | 0.005 | (2, 425)=0.56 | 0.572 | 0.003 |
Block design | 5, 760=1.39 | 0.228 | 0.009 | (1, 187)=0.25 | 0.618 | 0.001 | (2, 424)=1.31 | 0.277 | 0.006 |
Letter-number sequencing | 5, 761=1.19 | 0.312 | 0.008 | (1, 187)=4.51 | 0.035 | 0.024 | (2, 425)=1.39 | 0.250 | 0.007 |
General factor: processing speed (gspeed) | 5, 723=0.93 | 0.463 | 0.006 | (1, 173)=0.31 | 0.578 | 0.002 | (2, 407)=0.30 | 0.739 | 0.001 |
Digit symbol coding | 5, 760=0.93 | 0.459 | 0.006 | (1, 187)=0.31 | 0.578 | 0.002 | (2, 424)=0.89 | 0.410 | 0.004 |
Symbol search | 5, 757=1.18 | 0.316 | 0.008 | (1, 186)=0.00 | 0.951 | 0.000 | (2, 422)=0.37 | 0.692 | 0.002 |
Simple reaction time (seconds) | 5, 754=0.55 | 0.741 | 0.004 | (1, 185)=0.42 | 0.518 | 0.002 | (2, 421)=1.25 | 0.287 | 0.006 |
Four-choice reaction time (seconds) | 5, 758=0.35 | 0.880 | 0.002 | (1, 186)=0.84 | 0.462 | 0.004 | (2, 424)=0.44 | 0.646 | 0.002 |
Inspection time | 5, 736=2.13 | 0.060 | 0.014 | (1, 177)=2.26 | 0.135 | 0.013 | (2, 414)=0.20 | 0.820 | 0.001 |
General factor: memory (gmemory) | 5, 746=2.11 | 0.063 | 0.014 | (1, 183)=0.17 | 0.685 | 0.001 | (2, 416)=0.79 | 0.457 | 0.004 |
Logical memory | 5, 760=2.13 | 0.060 | 0.014 | (1, 186)=0.27 | 0.601 | 0.001 | (2, 425)=2.33 | 0.099 | 0.011 |
Verbal paired associates | 5, 748=0.95 | 0.449 | 0.006 | (1, 184)=0.02 | 0.891 | 0.000 | (2, 417)=1.09 | 0.337 | 0.005 |
Spatial span | 5, 758=2.31 | 0.043 | 0.015 | (1, 187)=3.09 | 0.081 | 0.016 | (2, 422)=1.25 | 0.288 | 0.006 |
