23. What are the psychometric/technical properties of ASQ:SE-2?
Validity,
reliability, and utility studies were conducted on ASQ:SE-2 between 2009 and
2011 to accurately determine the psychometric properties of the screening
instrument. Normative studies included 14,074 children, ages 1 month up to 72
months. The results support the ability
of ASQ:SE-2 to discriminate between children with social-emotional delays and
those who appear to be developing typically in social-emotional areas.
Internal consistency, measured by Cronbach’s coefficient alpha, ranged from 71%–91%, indicating strong relationships between questionnaire total scores and individual items.
Test-retest reliability, measured as the agreement
between two ASQ:SE questionnaires completed by parents at 1- to 3-week
intervals, was 89%. These results suggest that ASQ:SE scores were stable across
time intervals.
Concurrent validity, as reported in percentage agreement between ASQ:SE and concurrent measures, ranged from 71% to 90%, with an overall agreement of 84%.
Sensitivity, or the ability of the screening tool to identify those children with social-emotional disabilities, 78% at 2 months to 84% at 24 months, with 81% overall sensitivity.
Specificity,
or the ability of the screening tool to correctly identify those children
without social-emotional delays, ranged from 76% at 18 months to 98% at 60
months with 83% overall specificity.
See also