Left-Handedness in Blind and Sighted Children

The article I researched deals with left-handedness in blind and sighted children. I am interested in this topic because both my younger brother and my younger sister are left-handed, whilst ever other person in our close relatives and extended family is right-handed.
The study took place in Blind Schools for children in Turkey. There were 1371 blind children and 831 blind children, of those, 823 were boys and 564 girls. The age of the participants ranged from 7 to 12 years. The participants were separated into three groups according to their visual acuity; total congenital blindness, blind with very poor visual acuity, and blind with poor visual acuity. There was a control group and an experimental group. The Edinburgh Handedness Scale was applied to all the children. A modified Edinburgh Handedness Scale, which had been converted to Braille was used for the blind children.
The researchers used nonparametrics and crosstab Pearson chi-square tests in SPSS to accumulate results.
When comparing boys and girls, the occurrence of left-handedness was significantly higher in blind than sighted children.  It was also found that the group with higher visual acuity had higher rates of left-handedness. In this study, the conclusion that left-handedness is more prevalent in blind children may suggest a reorganization of neural networks in the blind.
Caliskan, E., & Dane, S. (2009). Left-handedness in blind and sighted children. Laterality, 14(2), 205-213. doi:10.1080/13576500802586251