Closing the loop on nursing library instruction: using student performance to improve outcomes.

Two librarians analyzed nursing students' performance on an information literacy assignment to determine how they could change their instruction to better assist the students in comprehending the material. After identifying major areas of difficulty, including the use of search techniques, they revised both the instruction and the assignment, closing the loop by utilizing their assessment data. Next, they analyzed those results to evaluate the effectiveness of their changes and to make further improvements, thus demonstrating the iterative nature of instruction and assessment. The evidence-based instruction cycle of teaching, assessing, and revising should be repeated frequently to keep the assignment fresh and relevant.