Research Article

Developmental Risk: Evidence from Large Nonright-Handed Samples

Table 2

Sex ratio (males/females) according to handedness and age groups.

Handedness groupsLateralization indexYounger childrenOlder childrenAdults

CRH+100 1.00.80.9
IRH+90 to +30 0.91.51.1
MH+20 to −20 3.62.11.4
ILH−30 to −90 1.00.90.8
CLH−100 1.01.11.0

Note: CRH: consistent right-handers, IRH: inconsistent right-handers, MH: mixed handers, ILH: inconsistent left handers, CLH: consistent left-handers.