When randomized control trials (RCT) are not feasible, researchers seek other methods to make causal inference, e.g., propensity score methods. One of the underlined assumptions for the propensity score methods to obtain unbiased treatment effect estimates is the ignorability assumption, that is, conditional on the propensity score, treatment…

When validating assessment models built with data mining, generalization is typically tested at the student-level, where models are tested on new students. This approach, though, may fail to find cases where model performance suffers if other aspects of those cases relevant to prediction are not well represented. We explore this here by testing if…

SEVENTY-EIGHT EDUCATORS FROM 13 NORTHEASTERN STATES AND WASHINGTON, D.C. PARTICIPATED IN THE 3-DAY CONFERENCE FOCUSED ON TOPICS OF INTEREST TO BOTH STATE SUPERVISORS AND TEACHER EDUCATORS. MAJOR SPEECHES WERE (1) "A REVIEW OF RESEARCH IN AGRICULTURAL EDUCATION IN THE NORTH ATLANTIC REGION" BY G.M. LOVE, (2) "REVIEW AND SYNTHESIS OF…