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Published online by Cambridge University Press: 29 October 2015
Drawing on Plumert’s (1995) findings that children exhibit an optimism bios in their gross motor performance expectations compored with adults, this study tested the hypothesis that younger children are more likely to overestimate their gross motor performance compared with older children. Participants were 6-year-old and 11-year-old children. The accuracy of children’s estimates of their motor performance was assessed using four tasks (horizontal reach, vertical reach, clearance, and stepping), which were adjusted to either well-within, just-within, just-beyond, or well-beyond each child’s individual abilities. Results confirmed that the 6-year-olds significantly overestimated their motor performance compared with 11-year-olds. The discussion focuses upon the ecological validity of these findings, as well as the implications for children’s motor confidence and motor development.