Protocol - Hand Dominance - 12 Years and Older
The protocol consists of questions to determine which hand the participant uses for a series of activities.
The following protocol is part of a personal interview in which the participant reports on his/her own hand usage. Young Adult and Adult handedness is assessed using an 11-item scale. Please indicate your preferences in the use of hands in the following activities by putting a 1 in the appropriate column (for right only, left only, or both hands) for each item that you use.
4. Hold a racquet
5. Clean teeth
7. Strike a match
8. Use an eraser
9. Deal cards
10. Thread a needle
11. Cut food with a knife
Scoring: The participant indicates use by a "1" in the appropriate column (for right, left, or both) for each item that an adult uses. Add the "1"s in each column to get a total for that column. The sum of all three column totals is the cumulative total. To calculate the score: 100 x (right total - left total)/cumulative total. Handedness is then classified as follows:
|Less than -40||left-handed|
|Greater than or equal to -40 and less than 40||mixed-handed|
|Greater than or equal to 40||right-handed|
Personnel and Training Required
The trained interviewer should be able to administer a questionnaire and be able to probe for information as necessary.
|Specialized requirements for biospecimen collection||No|
|Average time of greater than 15 minutes in an unaffected individual||No|
Mode of Administration
Self- or proxy-reported value
Adolescent, Adult, Senior
This measure includes two protocols, each relating to a specific age of the participant. Consistent hand dominance starts to develop between 2 and 3 years of age and is usually completed by 6 years of age. Hand preference that appears before the age of 18 months may signal impaired neurological control of the other hand.
Avon Longitudinal Study of Parents and Children Protocol (ALSPAC)
Child beginning at 42 months of age
Edinburgh Handedness Inventory
Participant aged 12 years and older
The Edinburgh Handedness Inventory was selected because of the detail of the activities that are performed.
|caDSR Common Data Elements (CDE)||Preference Hand Laterality||2180147||CDE Browser|
|Logical Observation Identifiers Names and Codes (LOINC)||Hand dom- 12Y proto EHI||56101-9||LOINC|
|Human Phenotype Ontology||Laterality||HP:0012831||HPO|
Process and Review
The Expert Review Panel #1 reviewed the measures in the Anthropometrics, Diabetes, Physical Activity and Physical Fitness, and Nutrition and Dietary Supplements domains.
Guidance from the ERP includes:
Revised description of measure
Back-compatible: no changes to Data Dictionary
Previous version in Toolkit archive (link)
Protocol Name from Source
Edinburgh Handedness Inventory
Oldfield, R. C. (1971). The assessment and analysis of handedness: The Edinburgh inventory. Neuropsychologia, 9, 97-113.
Porac, C., & Coren, S. (1981). Lateral preferences and human behavior. New York: Springer-Verlag.
|Variable Name||Variable ID||Variable Description||dbGaP Mapping|
|PX020602120500||Handedness is classified by the score.||Variable Mapping|
|PX020602120400||SCORE = 100 x (TOTAL_RIGHT - TOTAL_LEFT) / more||Variable Mapping|
|PX020602050000||Please indicate your preferences in the use more||Variable Mapping|
|PX020602110000||Please indicate your preferences in the use more||N/A|
|PX020602090000||Please indicate your preferences in the use more||N/A|
|PX020602020000||Please indicate your preferences in the use more||Variable Mapping|
|PX020602060000||Please indicate your preferences in the use more||Variable Mapping|
|PX020602040000||Please indicate your preferences in the use more||Variable Mapping|
|PX020602070000||Please indicate your preferences in the use more||Variable Mapping|
|PX020602100000||Please indicate your preferences in the use more||N/A|
|PX020602030000||Please indicate your preferences in the use more||Variable Mapping|
|PX020602120300||How many Both hands in Questions 1-11?||Variable Mapping|
|PX020602120200||How many Left hand in Questions 1-11?||Variable Mapping|
|PX020602120100||How many Right hand in Questions 1-11?||Variable Mapping|
|PX020602080000||Please indicate your preferences in the use more||N/A|
|PX020602010000||Please indicate your preferences in the use more||Variable Mapping|
March 27, 2009
Dominance is measured to assess the movement, mobility, and flexibility of an individual to determine which side of the body the study subject favors or the strength of hand activity.
This measure is used to determine which hand is dominant or more skilled for fine motor tasks than the other. Of the general population, about 90% have right hand dominance, about 10% have left hand dominance, and about 1% are mixed-handed or can use either hand interchangeably to complete a fine motor task (Porac & Coren, 1981). Hand dominance is thought to be influenced by genetics, and loci for relative hand skill have been mapped.
Anthropometrics, dominance, handedness, ambidextrous, ALSPAC
|Protocol ID||Protocol Name|
|20601||Hand Dominance - 42 Months and Older|
|20602||Hand Dominance - 12 Years and Older|