What is the cut-off score? Why does it take six weeks to mail or receive the examination results?
Exam questions are determined by the American Board of Tissue Banking (ABTB) and randomly chosen from the test question item bank. Consistency is ensured by validating each item (test question) and adjusting the cut off-score up or down, as needed. The ABTB Exam Board and the contracted testing firm review each item after the initial test scoring. Each item is reviewed for correctness, performance and difficulty level. The cut-off score is not arbitrary, but is determined by the overall test difficulty. Test questions that do not perform well are deleted from the item bank or flagged for rewrite. In addition, examinee comments from the critique forms are reviewed and test question revisions are made where deemed necessary.After this lengthy review process is complete, each test is scored again and the testing firm provides the final results to AATB. Individual test results are then prepared by AATB and provided to each examinee.
