Stage 1 Registered Report: The relationship between handedness and language ability in children [version 1; referees: 2 approved]

Stage 1 Registered Report: The relationship between handedness and language ability in children [version 1; referees: 2 approved]

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Weak or inconsistent hand preference may be a risk factor for developmental language delay.This study will test the extent to which variations in language skills are associated with the strength of hand preference.Data are drawn from a large sample (n = 569) of 6- to 7-year-old children unselected for ability, assessed at two time points, 6 spur strap months apart.Hand preference is assessed using the Quantitative Hand Preference task (QHP) and five uni-manual motor tasks.Language skills (expressive and receptive Rectangle Cocktail Table vocabulary, receptive grammar, and morphological awareness) are assessed with standardized measures.

If weak cerebral lateralisation (as assessed by the QHP task) is a risk factor for language difficulties, it should be possible to detect such effects in the large representative sample of children examined here.