Infant Toddler Environment Rating Scale (ITERS), Revised Edition (Harms, T., Clifford, D., & Cryer, D).


A thorough revision of the original ITERS, designed to assess center-based child care programs for infants and toddlers up to 30 months of age.

Scale consists of 39 items organized into 7 subscales:

  • Space and Furnishings
  • Personal Care Routines
  • Listening and Talking
  • Activities
  • Interaction
  • Program Structure
  • Parents and Staff

New curriculum and program items in the revised ITERS include: Helping children understand language; Nature/science; Use of TV, video and computer; Free play; and Group play activities. Items have been added to make the scale more inclusive and culturally sensitive, to address professional needs of staff, and to reflect the latest health and safety information.


Assessment Curriculum/Instructional Methods Developmental Delay Early Childhood Early Intervention Instructional Strategies Preschool Professional Resources