Objective To develop a screening scale for developmental delay and explore its reliability and validity. Methods The study included preliminary experiment and a formal investigation.Preliminary experiment randomly selected 110 children in good health of appropriate months from three districts in Beijing,questionnaires were administered to their parents and all the data were analyzed of factor analysis.Formal investigation randomly selected 30 children every month in two districts,screening scales were completed by the parents,and physicians in community asked related developmental information in 7 days.Denver developmental screening test (DDST) was carried out in 6 months,18 months and 36 months for validity test.Children of developmental delay were selected from referrals in whole city,30 children were investigated with the questionnaires and Gesell at the same time for reliability and validity inspection. Result The results showed that the Cronbach' α coefficient of full scale was between 0.500 to 0.793,raters consistency was between 0.53 to 0.91,content validity of the scale were above 0.5.Criterion validity test and Gesell consistency were all satisfying. Conclusion The reliability and validity of this screening scale were satisfying,and it could be used for the screening of developmental delay.
Key words
0 to 3 years old children /
developmental delay /
screening scale /
reliability /
validity
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