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The validity of parent‐based assessment of the cognitive abilities of 2‐year‐olds
Author(s) -
Saudino Kimberly J.,
Dale Philip S.,
Oliver Bonny,
Petrill Stephen A.,
Richardson Victoria,
Rutter Michael,
Simonoff Emily,
Stevenson Jim,
Plomin Robert
Publication year - 1998
Publication title -
british journal of developmental psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.062
H-Index - 75
eISSN - 2044-835X
pISSN - 0261-510X
DOI - 10.1111/j.2044-835x.1998.tb00757.x
Subject(s) - psychology , bayley scales of infant development , cognition , developmental psychology , nonverbal communication , psychomotor learning , neuroscience
Parent reports have been widely used to assess child behaviours in the socio‐emotional domain, but seldom have been used to assess behaviours within the cognitive domain. The present study examines the ability of parent reports and parent‐administered tasks obtained through the post to assess non‐verbal cognitive abilities in early childhood. In a sample of 107 2‐year‐olds, age‐corrected scores on parent reports and parent‐administered tasks assessing non‐verbal reasoning significantly predicted performance on the Mental Development Index (MDI) of the Bayley Scales of Infant Development‐II two weeks later ( r = .49 and r = .41, p < .0001, respectively). The multiple correlation between the two components and the MDI was .55 ( p < .0001). This ability of parental assessments to predict the MDI is comparable to the predictive power of standard tester‐administered measures at this age, even though the parent measure specifically excludes verbal items that are included in the MDI. Adding parent reports of language development significantly improved the prediction of the MDI ( R = .66, p < .0001). In addition, higher within‐domain than cross‐domain correlations reflect a significant ability of parents to discriminate verbal and nonverbal abilities.