Aim: To examine the effect of the multimodal managing examination anxiety program applied to high school students on test anxiety of high school students and some predictors of test anxiety. Material and Methods: The population of the study, which was in the pretest-posttest single-group quasi-experimental design, consisted of 150 high school senior students. A managing examination anxiety program applied once a week for 7 weeks to 40 students selected using the convinient sampling. The ınformation form and the Westside test exam scale used as data collection tools. Results: The posttest mean score (32.15 ± 8.15) of the students from the Westside Test Exam Scale was significantly lower than the pretest mean score (37.57 ± 5.49) (p