Chunk #58 — 3. Results — 3.2. Genetic effects and gene × sex interactions — 3.2.2. Correspondence between association trajectories — Test of intramodal correspondences
There were 112 correspondence measures for the intramodal data, as defined in section 2.4.2, (7 age ranges × 4 SNPs × 2 modalities × 2 sexes), each of which was assigned a value equal to the sum of the number of p-values in the three different scalp locations less than the threshold, in this case .0136. As observed, there were 13 3’s, 14 2’s, 15 1’s, and 70 0’s. A permutation test of the null hypothesis that the observed measure came from a non SNP-specific combination of each of the same age range-modality-sex combinations showed that the null hypothesis could be rejected at the p < 4.15 × 10−4 level. This is the result of the fact that there were a much larger number of sets of scalp locations in which all three values were the same in the observed data than there were in the randomized data produced by the permutation process.
