Introduction
Most people are right handed. The Edinburgh Handedness Inventory is a well known short questionnaire for determining objectively whether one is left or right handed (Oldfield, 1971), and there is a short form of it (Vealy, 2014). This PsyToolkit implementation uses the short form.
The questionnaire takes only half a minute or so.
This handedness inventory is useful for cognitive psychological experiments in which people use both hands. Often, people respond slightly faster with the dominant hand.
| Did you know that Ned Flanders is one of the most famous fictional left handers? Read about it here. |
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Legal stuff
You can use this questionnaire, but you will need to cite both references listed at the bottom, as well as PsyToolkit.
Technically
This is a very simple questionnaire. For the feedback, some more advanced HTML is being used, namely color coding and a small table.
The survey code for PsyToolkit
scale: side
- {score=-100} Always left
- {score=-50} Usually left
- {score=0} Both equally
- {score=50} Usually right
- {score=100} Always right
l: questions
t: scale side
q: Please indicate your preferences in the use of hands in the following activities or objects
- Writing
- Throwing
- Toothbrush
- Spoon
l: score
t: set
- mean $questions
l: feedback
t: info
q: <b><font color='red'>Your laterality quotient score is {$score}.</font></b><br><br>
The standard classification is as follows:<br>
<table border=1>
<tr><th>Handedness</th><th>Laterality Quotient score</th</tr>
<tr><td>Left handers:</td><td> -100 to -61</td</tr>
<tr><td>Mixed handers:</td><td> -60 to 60</td></tr>
<tr><td>Right handers:</td><td> 61 to 100</td></tr>
</table>
References
-
Oldfield, R.C. (1971). The assessment and analysis of handedness: The Edinburgh inventory. Neuropsychologia, 9, 97-113.
-
Veale, J.F. (2014). Edinburgh Handedness Inventory - Short Form: A revised version based on confirmatory factor analysis. Laterality, 19, 164-177.