The LDDI is a rating scale designed to help psychologists, diagnosticians, LD specialists, speechlanguage pathologists, and others identify intrinsic processing disorders and learning disabilities in students between the ages of 8-0 and 17-11. A reliable and valid norm-referenced inventory, the LDDI is composed of six independent scales‹one for each of the areas listed in the definition by the U.S. Office of Education and the National Joint Committee on Learning Disabilities: Listening, Speaking, Reading, Writing, Mathematics, and Reasoning.
Each scale contains 15 easy-to-rate items. The items were generated after an extensive review of theoretical writings and empirical studies in learning disabilities, especially the literature that focused on the neuropsychological aspects of the disabilities. The appropriateness of the behaviors represented by the items was confirmed in a survey of experts in the field and by extensive research that is reported in the manual.
The LDDI was built for the single purpose of helping professionals identify learning disabilities in individuals. It is not an ability or achievement measure (i.e., it will not tell you how well or how poorly students read, write, speak, and so forth). Instead, the LDDI will tell you the extent to which students’ skill patterns in a particular area (e.g., reading, writing) are consistent with those individuals known to have LD in that area (e.g., dyslexia, dysgraphia). Thus, using the LDDI shifts the diagnostic emphasis away from interpreting norm-referenced ability test scores and toward studying an individual’s skill patterns, especially those patterns that are indicative of people who are known to have specific learning disabilities.
Complete LDDI Kit:
- Manual
- 50 Rating Summary Booklets
