Infant/Toddler Environment Rating Scale (Iters-R): Revised EditionDesigned for use in center based child care programs for infants and toddlers up to 30 months of age, the Infant Toddler Environment Rating Scale(R), ITERS R, can be used by program directors for supervision and program improvement, by teaching staff for self assessment, by agency staff for monitoring, and in teacher training programs. The established reliability and validity of the scale make it particularly useful for research and program