Lower-level contrast 1 (geo, groom > non_geo)
Lower-level contrast 2 (geo, groom, se_new > non_geo)
Lower-level contrast 3 (geo, groom, se_new, se_old > non_geo)
Lower-level contrast 4 (geo > non_geo)
Lower-level contrast 5 (groom > non_geo)
Lower-level contrast 6 (se_new > non_geo)
Lower-level contrast 7 (se_new, se_old > non_geo)
Lower-level contrast 8 (se_new > se_old)
Lower-level contrast 9 (av: se_new > pe_old)
Lower-level contrast 10 (av: se_new, pe_new > se_old, pe_old)
Lower-level contrast 11 (av: se_new > se_old)
Lower-level contrast 12 (av: se_new > se_old, pe_old)
Lower-level contrast 13 (av: se_new, pe_new > pe_old)
Design matrix