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Is self-report a valid measure of unimanual object-based task performance?
Marcus L Leppanen1, Keith B Lyle1, Freya M Edlin1
1a Department of Psychological and Brain Sciences , University of Louisville, Louisville, KY, USA.
Laterality
|November 24, 2018
Summary
Handedness inventories accurately measure hand preference and consistency. Higher scores on these inventories correlate with more frequent preferred hand use and greater manual fluency.
Area of Science:
- Neuroscience
- Psychology
- Human Behavior
Background:
- Hand preference is typically assessed using self-report questionnaires called handedness inventories.
- These inventories ask about hand use and consistency in unimanual tasks.
- Empirical validation of these self-reported measures is limited.
Purpose of the Study:
- To investigate the validity of handedness inventory scores.
- To determine if self-reported hand preference and consistency align with actual behavior and performance.
Main Methods:
- Participants completed a handedness inventory.
- Following a brief delay, participants performed inventory tasks, choosing their hand spontaneously.
- Participants' speed was measured performing tasks with each hand.
Main Results:
- Individuals with higher handedness inventory scores demonstrated more frequent use of their preferred hand during spontaneous task performance.
- A positive correlation was found between self-reported consistency and the magnitude of the preferred hand advantage in speed.
- These findings support the validity of handedness inventory scores.
Conclusions:
- Handedness inventory scores are valid indicators of actual hand preference and behavioral consistency.
- Self-reported consistency on handedness inventories relates to both spontaneous hand selection and manual dexterity.
- The study provides empirical support for the use of handedness inventories in research and clinical settings.
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