Scoring and Interpretation
The IDA-2™ is criterion-referenced. Throughout the IDA-2 process, practitioners gather information from multiple sources, integrate that information in a meaningful way, and create a plan of action. Duplication of effort and information is eliminated. This saves time and money, reduces the stress created by more fragmented approaches, and yields more complete information. The IDA-2 process leads to efficient, informed decisions.
IDA-2 meets the assessment criteria required by IDEA and is consistent with the National Task Force on Screening and Assessment of the National Early Childhood Technical Assistance System (NECTAS) guidelines.
Reliability coefficients for the Provence Profile domain scores are generally quite high, ranging from .90 to .96 for ages 1 to 18 months and .78 to .96 for ages 19 to 36 months. Inter-rater reliabilities range from .91 to .95 for seven of the eight domains and .81 for the remaining domain.
Infant-Toddler Developmental Assessment, IDA, and the IDA logo are trademarks of Houghton Mifflin Harcourt.