Saypro The Purpose Of This National Joint Committee On Learning Disabilities (njcld) Report Is To Examine The Concepts, Potential Benefits, Practical Issues, And Unanswered Questions Associated With Responsiveness To Intervention (rti) And Learning Disabilities (ld). A Brief Overview Of The Approach Is Provided, Including Attributes, Characteristics, And Promising Features, As Well As Issues, Concerns, Unanswered Questions, And Research Needs.