Journal of Family Medicine and Primary Care

ORIGINAL ARTICLE
Year
: 2016  |  Volume : 5  |  Issue : 1  |  Page : 124--128

Validity and reliability of the developmental assessment screening scale


Ajay Singh1, Jane Squires2, Chia Jung Yeh3, Kay H Heo4, Hui Bian5 
1 College of Education and Technology, Eastern New Mexico University, New Mexico, USA
2 Department of Special Education and Clinical Sciences, College of Education, University of Oregon, Oregon, USA
3 Department of Human Development and Family Science, College of Health and Human Performance, East Carolina University, NC, USA
4 Office of Faculty Excellence, East Carolina University, NC, USA
5 Department of Early Childhood Education, Chongshin University, Seoul, South Korea

Correspondence Address:
Ajay Singh
College of Education and Technology, Eastern New Mexico University, Portales, NM 88130
USA

Objectives: To develop and validate the 6-year Ages and Stages Questionnaire (ASQ) for school-age children. Methods: Parents/caregivers of children 66-78 months were recruited from 6 countries and 15 states in the United States. Similar to other ASQ intervals, the 6-year ASQ has five developmental domains targeted for children from 66 months to 78 months of age. We assessed internal consistency reliability, test-retest reliability, the scale structure, validity (correlation coefficients), and utility of the 6-year ASQ. The 6-year ASQ screens development in five domains using 30 items. Results: Coefficient alpha measuring internal consistency was 0.97. Test-retest reliability was estimated by having parents complete two ASQ«SQ»s on the same child within a week interval. Correlations between scores of the two ASQ«SQ»s reflected stability of scores. Test-retest reliability results were robust with an intraclass correlation coefficient of 0.94. Factor analysis results resulted in a five factors structure. The Pearson correlations coefficients between the latent variables were moderate to large and statistically significant, P < 0.0001. The 6-year ASQ screens development in five domains using 30 items. The administration time varied from 10 to 60 min with a mean of 15.17 min. General utility result shows that the 6-year ASQ can be used with satisfaction by caregivers, pediatricians, professionals, and parents. Conclusions: Preliminary data on the 6-year ASQ reflected promising results. An easy-to-administer, accurate caregiver-completed screening tool may increase the frequency of screening for school-age children.


How to cite this article:
Singh A, Squires J, Yeh CJ, Heo KH, Bian H. Validity and reliability of the developmental assessment screening scale.J Family Med Prim Care 2016;5:124-128


How to cite this URL:
Singh A, Squires J, Yeh CJ, Heo KH, Bian H. Validity and reliability of the developmental assessment screening scale. J Family Med Prim Care [serial online] 2016 [cited 2019 Jun 27 ];5:124-128
Available from: http://www.jfmpc.com/article.asp?issn=2249-4863;year=2016;volume=5;issue=1;spage=124;epage=128;aulast=Singh;type=0