The LDDI inventory helps professionals identify learning disabilities in children ages 8 to 17, and reveals the extent to which skill patterns in a particular area (e.g., reading or writing) are consistent with those of individuals known to have a learning disability in that area (e.g., dyslexia or dysgraphia). The LDDI can be completed in 10 minutes by a teacher or speech-language pathologist who is familiar with the student’s skills.
The LDDI inventory is composed of six independent scales, each with 15 easy-to-rate items. Stanines are used to identify the likelihood of intrinsic processing disorders in the six areas—Listening, Speaking, Reading, Writing, Mathematics, Reasoning—as well as to conduct a profile analysis to determine the extent to which a student’s LDDI profile reflects that which is associated with learning disabilities. The inventory was normed on 2,152 students with learning disabilities and reports scores in stanines and percentiles. Back to the top
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