This study, which examined the effect of stress management training given to health students on students' perceived stress, coping methods with stress and psychological resilience. The population of this pretest-posttest randomised controlled study consisted of 126 first-year health students studying in the associate degree departments of the central vocational school of a health university in western Turkey. The sample consisted of students who met the inclusion criteria and voluntarily accepted to participate in the study. The study was completed with 102 students, 51 intervention-51 control. First-year associate degree health students who voluntarily accepted to participate in the study, who were 18 years of age or older, and who were continuing their active education were included in the study. Students who did not meet the specified inclusion criteria were excluded from the study. The students participating in the study were not informed which group they were in. Single blinding method was used in the study because the researcher was involved in group allocation, intervention and data collection tasks. A total of 126 first-year students studying at a vocational school were evaluated by the researcher according to the inclusion or exclusion criteria. As a result, 102 participants were randomised and assigned to the intervention and control groups. In order to reduce selection bias in determining the intervention and control groups, the individuals to be included in the sample were determined using the www.random.org website. The dependent variables of the study are perceived stress scale, coping methods with stress scale and short psychological resilience scale. Stress management training is the independent variable. Sociodemographic data of the students were the control variable of the study. In this face-to-face study, students who met the inclusion criteria were randomised and assigned to the groups. In the first interview with the students assigned to the intervention and control groups, students were informed about the purpose of the study and the process, and pre-tests were applied to the students after their consent was obtained. After 1 week, students randomly assigned to the intervention group were given psychoeducation on stress management consisting of 7 modules each lasting 120 minutes (with a break), on a day determined during the week for 7 weeks. Stress management training was given by the researcher, who has a master's degree in Community Mental Health Nursing and a doctoral degree in Mental Health and Psychiatric Nursing and has received training on stress and coping with stress. Two weeks after the training was completed, post-tests were applied to the intervention and control group students. During this process, no intervention was applied to the control group. After the study was completed, the same stress management training was given to the control group. For the scales used in the study, permission was obtained from the authors who developed the scales and conducted the adaptation studies into Turkish. Written permission was obtained from the ethics committee of the university where the study was conducted (number 2024/03-04 on 05.03.2024) for ethical compliance and implementation. Informed consent was obtained after explaining the purpose of the study to the students participating in the study. In addition, the ethical principles of the current Helsinki Declaration were adhered to during the study. In this study, firstly, power analysis was performed to determine the sample size. Mean and standard deviation were used as descriptive statistics for quantitative variables determined by measurement, and number and percentage were used as descriptive statistics for qualitative variables determined by counting. Chi-square test and Fisher's exact test were used to analyse the similarity of the groups. After the normality analyses showed that the data had a normal distribution, independent sample t test and dependent sample t test were used for comparisons of pre-test and post-test scores within and between groups. Analysis of covariance (ANCOVA) was used to determine the effectiveness level of psychoeducation. In order to determine the effect size, Eta Squared (µ²) values were taken into consideration and these values were interpreted by taking the values determined by Cohen as criteria (small if .01, medium if .06 and above, and large if .14 and above). Cronbach's Alpha was calculated for reliability analysis. Analyses were performed with Statistical Package for the Social Sciences version 25 and p\<0.05 was considered statistically significant in comparisons.