This package contains the Learning Disabilities Diagnostic Inventory (LDDI) and the LDDI examiner's manual. The LDDI is intended to help identify intrinsic processing disorders in children and adolescents. Items represent specific observable behaviors associated with learning disability (LD) in listening, speaking, reading, writing, mathematics, and reasoning. The first chapter of the manual discusses the nature of LD, describes the inventory, emphasizes the value of teacher/clinician ratings, and delineates the purposes for which the LDDI is intended. Chapter 2 provides information about administration and scoring of the LDDI, including examiner qualifications, rater qualifications, basic guidelines, and specific administration and scoring instructions. Chapter 3 is about interpreting LDDI results, including using the profile to conduct a differential diagnosis and sharing results with others. The following chapter provides normative information. Specifically discussed are the methods used to arrive at the test's norms. Chapters 5 and 6 present detailed data concerning the test's reliability and validity. (Contains approximately 200 references.) (DB)