Valid and Reliable
Based on five years of research, Waterford Assessments of Core Skills™ (WACS) is valid and reliable.
WACS items align with state and common core standards. Items have been validated by nationwide testing.
WACS has gone through an extensive validation testing process which includes: item validation using Item Response Theory (IRT); an examination of content, construct, and criterion validity; test-retest reliability; and internal consistency reliability.
For more information regarding the WACS validity portfolio, please contact us.
