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This article is from the Lefthanders FAQ, by Barry D. Benowitz b.benowitz@telesciences.com with numerous contributions by others.
07. Is there a quick test to determine handedness?
No, there is not. In fact, the only sure way to determine brain
dominance is to anesthetize one half of the brain and then see
what functions are still handled by the still functioning hemisphere.
There have been interesting results obtained, such as people able
to respond to visual cues but not verbal cues. I don't know about
you, dear reader, but I am not willing to submit to this test just
to definitively answer the question.
However, you can try this: Sitting comfortably, fold your hands
together and notice which thumb is on top. Lefties will have the
right thumb on top.
Readers should note that this test is not completely accurate. We
have heard about a significant number of lefties on alt.lefthanders
who fail this test. Readers should also note that hand preference
is usually not evident until children are age 4-6. Some children have
been known to exhibit a preference as early as age 2.
According to J.B. Sattler ( Das linkshändige Kind in der
Grundschule, page 17) a better test to determine which hand is
dominant is to note which hand is usually/preferably used to...
- be put up in school
- switch on/off lights
- brush teeth
- comb hair
- hammer
- water flowers
- throw dice
- pick up/count things
- open window/door
- use a screwdriver
- sew
- throw a ball etc.
- draw ,paint, write
Thanks: Inken B. Spreda <inken@wolnetdotde>
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