Research has shown there is a gap between academia and practice. Nursing stakeholders support the use of the clinical judgment model in developing competency for practice. This study analyzed the effectiveness of simulation-based education on the development of clinical judgment and explored new graduate nurses' perceptions of their preparation for practice. A longitudinal, explanatory, mixed-methods design with survey points at onset and end of the intervention and interviews 6 months postgraduation. The Simulation Effectiveness Tool-Modified (SET-M) was utilized for the pre- and posttest surveys. Two-tailed Mann-Whitney 2-sample rank sum tests were conducted and analyzed for all items on the SET-M. Significant differences were seen in pre- and posttest responses for 12 of the 19 SET-M survey items. The findings of this study support the deliberate alignment of didactic and practical teaching strategies to strengthen practice performance and bridge the gap.