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Stability Reliability of the Griffiths Scales of Child Development (3<up>rd</up> Edition)
Department of Psychology, Nelson Mandela University, Gqeberha, South Africa
Association for Research in Infant and Child Development, Birmingham, UK
Association for Research in Infant and Child Development, Birmingham, UK
- 1 Department of Psychology, Nelson Mandela University, Gqeberha, South Africa
- 2 Association for Research in Infant and Child Development, Birmingham, UK
- 3 Association for Research in Infant and Child Development, Birmingham, UK
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Abstract
The test-retest reliability and inter-rater reliability of the Griffiths III were investigated using a sample of 53 children in the United Kingdom and the Republic of Ireland. Correlations indicated very high reliability of the scales over a two- to four-week period (.969 to .991), as well as between raters (.967 to .996). Variations in mean scores were observed for the Gross Motor subscale, which is consistent with literature on intra-individual differences in this domain. It is recommended that the study be repeated on larger samples, at more extended testing intervals, and on samples from different countries.
KeywordsGriffiths IIIChild DevelopmentTest-Retest ReliabilityInter-Rater Reliability
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