Evidence of promise
Evidence of promise means there is empirical evidence to support the theoretical linkage between at least one critical component and at least one relevant outcome presented in the logic model for the proposed process, product, strategy, or practice. Specifically, evidence of promise means the conditions in both paragraphs (i) and (ii) of this definition are met:
(i) There is at least one study that is a -
(A) Correlational study with statistical controls for selection bias;
(B) Quasi-experimental design study that meets the What Works Clearinghouse Evidence Standards with reservations; or
(C) Randomized controlled trial that meets the What Works Clearinghouse Evidence Standards with or without reservations.
(ii) The study referenced in paragraph (i) of this definition found a statistically significant or substantively important (defined as a difference of 0.25 standard deviations or larger) favorable association between at least one critical component and one relevant outcome presented in the logic model for the proposed process, product, strategy, or practice.