Purpose: This study used a quasi-experimental one-group repeated-measures design to examine changes in nurses’ ability to use SBAR, communication competence, and critical thinking disposition in general hospitals after implementation of the ISBARQ-Based Education program. Methods: The program, developed from the SBAR and ISBARQ frameworks, comprised three 60-minute sessions that combined lectures and role-playing. Data were collected from April 4 to May 21 at three time points: pre-intervention, post-intervention, and follow-up.
Analyses were conducted using SPSS/WIN 25.0, and program effects were tested using repeated-measures ANOVA and generalized estimating equations (GEE). Results: Significant improvements were found over time in ability to use SBAR (Wald x2=40.67, p<.001), communication competence (F=20.13, p<.001), and critical thinking disposition (F=13.53, p<.001). Conclusion: The ISBARQ communication program enhanced nurses’ ability to use SBAR, communication competence, and critical thinking disposition, with sustained effects for up to four weeks. These results suggest that structured communication education strengthens nursing competencies and improves patient safety. However, the study’s single-group design and short duration limit its generalizability, indicating the need for randomized controlled trials with longer follow-up periods.