JOURNAL INFORMATIC. EDUCATION AND MANAGEMENT (JIEM) Vol 8 No 1 . : September 2025 - February 2026, pp. ISSN: 2716-0696. DOI: 10. 61992/jiem. A 42 The Effect Of The Project-Based Learning Model On StudentsAo Creative Thinking Skills In The Economics Subject Tasyaul Hayati 1*. Mira Chairani 1. Zulfikar 1 Universitas Almuslim Article Info Article history: Received 16 September 2025 Revised 19 September 2025 Accepted 22 September 2025 Keywords: Project-Based Learning. Creative Thinking. Economics Learning. Quasi Experiment ABSTRACT This study aims to examine the effect of the Project-Based Learning (PjBL) model on studentsAo creative thinking skills in economics subject. The research employed a quasiexperimental method with a non-equivalent control group The sample consisted of two classes: an experimental class taught using PjBL and a control class taught using conventional methods. Data were collected using a creative thinking skills test administered in both pre-test and post-test. The results showed a significant improvement in the experimental class compared to the control class. Independent sample t-test analysis confirmed that the difference was statistically significant. These findings indicate that PjBL can serve as an effective alternative learning model to improve studentsAo creative thinking skills, particularly in economics This is an open access article under the CC BY-SA license. Corresponding Author: Tasyaul Hayati | Universitas Almuslim Email: tasyaulhayati@gmail. Introduction Education plays a fundamental role in shaping human resources and national character. the 21st century, students are required not only to master knowledge but also to develop critical, creative, collaborative, and communicative skills. Among these, creative thinking is crucial, especially in economics learning, where students need to analyze problems and propose innovative solutions. However, field observations indicate that studentsAo creative thinking skills remain low due to the dominance of conventional learning methods that emphasize rote memorization. Project-Based Learning (PjBL) offers an alternative solution by engaging students in reallife projects that foster collaboration, exploration, and product creation. Previous studies (Handayani, 2023. Nugraha et al. , 2. have shown that PjBL enhances studentsAo critical and creative thinking. Nevertheless, studies focusing on the application of PjBL in economics learning at the senior high school level remain limited. Therefore, this study was conducted to analyze the effect of PjBL on studentsAo creative thinking skills in SMA Negeri 2 Bandar Dua. Journal homepage: http://w. id/index. php/jiem JOURNAL INFORMATIC. EDUCATION AND MANAGEMENT (JIEM) Vol 8 No 1 . : September 2025 - February 2026, pp. ISSN: 2716-0696. DOI: 10. 61992/jiem. A 43 Research Methodology This study used a quantitative approach with a quasi-experimental method. The design employed was a Nonequivalent Control Group Design involving two purposively selected The experimental group was taught using the PjBL model, while the control group received conventional instruction. The study was conducted at SMA Negeri 2 Bandar Dua. Aceh Province, during the even semester of the 2024/2025 academic year. The total sample consisted of 37 students . in the experimental class and 15 in the control clas. The independent variable was the PjBL model, while the dependent variable was studentsAo creative thinking skills. The instrument was a written test developed based on four indicators: fluency, flexibility, originality, and elaboration. The instrument was validated and tested for reliability before Data were collected through pre-test and post-test. Data analysis involved prerequisite tests . ormality using Shapiro-Wilk and homogeneity using LeveneAos Tes. Hypothesis testing used paired sample t-test and independent sample t-test. Result and Discussion Results This study was conducted at SMA Negeri 2 Bandar Dua. Pidie Jaya. Aceh. Data analysis began with prerequisite tests, namely normality and homogeneity tests. The Shapiro-Wilk normality test showed that all data, both in the experimental and control classes, had a significance value greater than 0. This means that the data was normally The results of the normality test are shown in Table 1. Creative Ability Table 1. Test of Normality Results Shapiro-Wilka Class Sig. Thinking Experimental Pre-Test Experimental Post-Test Control Pre-Test Control Post-Test Source: Data processed with SPSS Furthermore, the results of the homogeneity test using Levene's Test also showed a significance value above 0. This indicates that the variance of the two groups is The complete results of the homogeneity test are shown in Table 2. Table 2. Test of Homogeneity Results Levene Df1 Statistic Journal homepage: http://w. id/index. php/jiem Df2 Sig. JOURNAL INFORMATIC. EDUCATION AND MANAGEMENT (JIEM) Vol 8 No 1 . : September 2025 - February 2026, pp. ISSN: 2716-0696. DOI: 10. 61992/jiem. ProblemSolving Skills Based on Mean Based on Median Based on Median and With Adjusted Df Based on Trimmed Mean Source: Data processed with SPSS A 44 The results of the study show that the creative thinking skills of students in the experimental class taught using the Project Based Learning (PjBL) model increased more significantly than those in the control class. The average score of students in the experimental class rose 77 to 79. 77, while in the control class it only increased from 39. 00 to 54. This proves that the application of the PjBL model is more effective than conventional methods in improving students' creative thinking skills. Differences In Creative Thinking Skills Figure 1. Comparison of Creative Thinking Skills between Experimental and Control Classes Furthermore, the N-Gain value calculation shows that the experimental class had an average 06 . igh categor. , while the control class only reached 21. ow categor. This shows that the PjBL model is more effective in improving students' creative thinking skills. Details of the N-Gain results can be seen in Table 3. Table 3. N-Gain Results for the Control Class and Experimental Class Class Description N Mean Standar Deviasi Pre-Test Experimental Post-Test N-Gain Pre-Test Control Post-Test Journal homepage: http://w. id/index. php/jiem JOURNAL INFORMATIC. EDUCATION AND MANAGEMENT (JIEM) Vol 8 No 1 . : September 2025 - February 2026, pp. ISSN: 2716-0696. DOI: 10. 61992/jiem. N-Gain Source: Data processed with SPSS A 45 The hypothesis test using the paired sample t-test shows a significant difference between the pre-test and post-test scores. In the experimental class, a significance value of 0. 000 (< 0. was obtained, while in the control class the value was 0. 005 (< 0. These results are shown in Table 4. Table 4. Paired Sample Test Results Paired Samples Test Paired Differences Mean Sig. Taile. Confidence Std. Interval Of The Std. Error Difference Deviation Mean Lower Upper Pre_Exp -45. Post_Exp Pre_Con Pair 2 Post_Con Source: Data processed with SPSS Pair 1 In addition, the results of the independent sample t-test on the post-test scores of the two groups produced a t-value of 6. 443 with a significance level of 0. 000 (< 0. This proves that there is a significant difference between the experimental class and the control class Table 5. Table 5. Independent Sample T-Test Results Sig . Test Description Taile. Independent Sampel T6. 0,05 Significant Test Source: Data processed with SPSS Discussion The implementation of PjBL encourages students to actively engage in the learning process, from project planning and collaboration to the presentation of results. This process trains students to think critically and creatively, as well as developing their communication and responsibility skills. This is in line with the theory that project-based learning provides contextual learning experiences so that students are able to connect concepts to real life. The results of the Paired Sample t-test show that both the experimental and control classes experienced an increase in learning outcomes. However, the increase in the experimental class was much more significant. This finding is reinforced by the results of the Independent Sample t-test, which shows a significant difference between the two classes. Thus, it can be concluded that PjBL is more effective than conventional methods. Journal homepage: http://w. id/index. php/jiem JOURNAL INFORMATIC. EDUCATION AND MANAGEMENT (JIEM) Vol 8 No 1 . : September 2025 - February 2026, pp. ISSN: 2716-0696. DOI: 10. 61992/jiem. A 46 The findings of this study are consistent with the results of previous studies. Biazus & Mahtari . stated that the implementation of PjBL can improve students' creative thinking skills in four main indicators, namely fluency, flexibility, originality, and Research by Wulandari. Hermita, & Sari . also shows that PjBL significantly improves students' creative thinking and collaboration skills. Other studies by Arifatin . in English language learning and Ekayana et al. with STEAM integration also support the effectiveness of PjBL. Thus, it can be emphasized that the implementation of Project-Based Learning (PjBL) not only significantly improves students' creative thinking skills but also fosters motivation, activity, and collaboration skills that are important in facing the challenges of 21st-century Conclusion The study concludes that the Project-Based Learning model significantly improves studentsAo creative thinking skills in economics learning. Students in the experimental class showed higher achievement compared to those in the control class, as evidenced by N-Gain scores and statistical tests. Therefore. PjBL can be considered an effective alternative learning strategy to foster creativity, motivation, and collaboration in senior high school economics. Acknowledgement The authors would like to thank SMA Negeri 2 Bandar Dua for supporting this research, as well as teachers and students who actively participated. Special appreciation is given to the academic supervisors for their valuable guidance and feedback. References