; or (D) other assistance necessary to encourage the improvement of teaching and learning through the application of techniques supported by scientifically valid research. ; and (25) by adding at the end the following: (33) Tribal college or university The term Tribal College or University has the meaning given the term in section 316(b) of the Higher Education Act of 1965. (34) Tribal organization The term Tribal organization has the meaning given the term in section 4 of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5304 ). (35) Youth with a disability The term youth with a disability has the meaning given the term in section 7 of the Rehabilitation Act of 1973 ( 29 U.S.C. 705 ). . A The Institute of Education Sciences 111. Establishment Section 111 ( 20 U.S.C. 9511 ) is amended— (1) by striking subsection (b) and inserting the following: (b) Mission (1) In general The mission of the Institute is to provide national leadership in expanding fundamental knowledge and understanding of education from early childhood through postsecondary study (including special education, adult education, and labor market outcomes), in order to provide students, families, practitioners, education system leaders, researchers, policymakers, and the general public with reliable information and research about— (A) the condition and progress of education in the United States; (B) educational practices that support learning to improve student outcomes, including academic achievement and access to high-quality educational opportunities for all students, particularly for each subgroup of students