If you haven’t completed the left-handed test yet, you can use this link to go to the survey form (it contains 12 Left/Right questions and will only take you a minute to complete).
This page gives our analysis of the surveys completed so far. By 27 May 2015 34,271 people had completed the survey and they declared their handedness as:
| Do you consider yourself to be left or right handed? | ||
| Left | 25,317 | 74% |
| Right | 3,127 | 9% |
| Both | 5,398 | 16% |
| Not answered | 433 | 1% |
| Total | 34,271 | 100% |
Of the people that consider themselves to be left-handed this is the percentage that answered each question “Left”:
| Question | % Left |
| Writing hand (we assume that the other 3% of people who consider themselves left-handed but said they write right-handed were forced to change their writing hand when they were young and have not changed it back) |
97% |
| Cutting with scissors (a lot of people mentioned that they use scissors right-handed because that was all that used to be available and they have never changed) |
70% |
| Holding a bat (one handed) | 78% |
| Eating with a spoon | 94% |
| Holding a toothbrush | 92% |
| Brushing hair | 89% |
| Eye (using a telescope) | 74% |
| Ear (using a telephone) (some people mentioned that they hold the phone to their right ear to leave their left hand free for taking notes. LHC’s Keith just gets in a tangle, holding the phone to his left ear with his right hand so he can still write with his left!) |
79% |
| Foot (kicking a ball) | 64% |
| Folding arms, which is on top | 68% |
| Clapping, which hand is on top | 81% |
| Clasping hands behind back, which hand is doing the holding | 77% |
| Throwing a ball | 77% |
| Turning the pages of a book | 74% |
| Using a bat or club two-handed (hand on bottom) (this question cause a lot of confusion with people thinking about “bottom” differently if they were holding the bat or club down, e.g. cricket or golf, or up for e.g. baseball. What we meant was the hand on the bottom being the one nearest the hitting end of the bat. If this is your left, you will be facing to your right looking over your right shoulder to see the ball coming) |
65% |
The percentage of people who consider themselves left-handed who were graded at each of our levels were:
| Grading | % of total |
| Seriously Left-Handed (>90% score) | 46% |
| Mainly left-handed (60-90% score) | 44% |
| Left but mixed-handed (40-60% score) | 7% |
| Probably a Right-Hander! (0-40%) | 3% |
The overall average score for people who consider themselves left-handed was 83%
And the number of people who scored 100% was 3,710 (15% of all the left-handers)
Of the 5,398 people who consider themselves “Both handed”, 60% use their left hand to write, 30% to cut with scissors and 67% used a phone on their left ear. Their overall weighted score was 55%.
Please add your own comments or interpretations as comments at the bottom of this page.
If you haven’t completed the left-handed test yourself yet, you can use this link to go to the survey form
There are other factors at play…I have virtually no vision in my right eye, so the “looking over your right shoulder” question is impossible for me. Also, I’m a “switch hitter” with toothbrushing, hair brushing, and some other activities…I start with one hand and change to the other as appropriate.
I’m in a similar scenario (my right eye is technically dominant, but my left eye sees better) I also just pick up things with whatever arm is closer, and I might switch while doing things for style points.