; (B) a partnership between a nonprofit educational organization and an institution of higher education; or (C) a consortium of institutions of higher education. (5) Eligible indian entity The term eligible Indian entity means the entity responsible for the governance, operation, or control of a Tribal College or University. (6) Evidence-based The term evidence-based has the meaning given the term in section 8101(21)(A) of the Elementary and Secondary Education Act of 1965 ( 20 U.S.C. 7801(21)(A) ). (7) Evidence tiers (A) Evidence tier 1 reform or practice The term evidence tier 1 reform or practice means a reform or practice that prior research suggests has promise for the purpose of successfully improving student achievement or attainment for high-need students. (B) Evidence tier 2 reform or practice The term evidence tier 2 reform or practice means a reform or practice described in subparagraph (A), or other reform or practice meeting similar criteria, that measures impact and cost effectiveness of student success activities, and, through rigorous evaluation (including through the use of existing administrative data, as applicable), has been found to be successfully implemented. (C) Evidence tier 3 reform or practice The term evidence tier 3 reform or practice means a reform or practice described in subparagraph (B), or other reform or practice meeting similar criteria, that has been found to produce sizable, important impacts on student success and— (i) determining whether such impacts can be successfully reproduced and sustained over time; and (ii) identifying the conditions in which such reform or practice is most effective. (8) First generation college student The term first generation college student has the meaning given the term in section 402A(h) of the Higher Education Act of 1965 ( 20 U.S.C. 1070a–11(h) ). (9) High-need student The term high-need student means— (A) a student from low-income background; (B) a first generation college student; (C) a caregiver student; (D) a student with a disability