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Fita Fitriatul Wahidah; Rahmah Arfiyah Ula; Sitti Nur Ilmiah; Lilik Erviani; Merinda Nur Indahsari +1 more

Jurnal Teknologi Pangan dan Ilmu Pertanian 2025 International Forum of Researchers and Lecturers

Continuous chemical control of rat pests (Rattus spp.) can sometimes lead to resistance and resurgence problems, and even some cases of inaccurate targeting ultimately killing livestock. The idea of ​​​​repelling rats in rice fields using vibrations of crickets and other natural animals transmitted via radio has been done and the results are quite optimal for rat control, but it has not been done in corn cultivation. The purpose of this study was to determine the effect of cat sound audio on the intensity of rat pest attacks (Rattus spp.) in corn (Zea mays L.) plantations. The research location was in a farmer's land owned by a farmer in Dagan Village, Solokuro District, Lamongan Regency. Observations were carried out on two corn fields, each measuring 1400 m2 with a distance of 1 meter between the two fields. Determination of sampling points using the diagonal method, each into 5 sub-observation plots. In each sub-plot, markers were placed as sampling points. Audio with cat and bird sounds was played continuously from 05.00 pm - 07.00 am. Observations were conducted at 7:00 a.m. at all sampling points at 30 and 60 days after planting. Observations were conducted for three days using audio and three days without audio. Damage symptoms were observed directly at each sampling point. Corn plants showing symptoms were then recorded and analyzed using the Damage Intensity formula. Observations showed that the use of cat sound audio was able to reduce the level of rat infestation. At 30 days after planting, the damage percentage was reduced by 8.33%. Meanwhile, at 60 days after planting, the damage percentage was reduced by 18.33%.

Resty Putri Ulyanah; Roslina Roslina

International Journal of Economic, Social and Development Sciences 2025 International Forum of Researchers and Lecturers

The growth of online shopping has encouraged brands to utilize live-streaming as a promotional tool to attract consumers, including Parfumoist in Lampung, which actively broadcasts product demonstrations to increase audience engagement. However, whether these broadcasts truly build trust and stimulate purchase intention remains uncertain, forming the central problem of this research. The research tried to analyze the influence of interactivity, visualization, entertainment, and professionalization during live-streaming on consumer trust and purchase intention. Using Stimulus-Organism-Response framework, live-streaming elements are positioned as stimuli, trust as the organism, and purchase intention as the response. A quantitative approach was employed, with purposive sampling of viewers who watched Parfumoist live streams and had made or intended to make a purchase. Data from an online questionnaire then analyzed with SEM-PLS. The findings reveal all four dimensions of live-streaming significantly affect purchase intention, mediated through consumer trust. The findings highlight that effective live-streaming depends not only on frequent broadcasts, but also on the ability of the host to interact meaningfully, present attractive visuals, entertain viewers, and display professionalism. This study concludes that improving the overall quality of live-stream sessions strengthens trust and intention to buy, offering theoretical implications for digital marketing research and practical recommendations for MSMEs to optimize live-streaming strategies in competitive markets.

Nunung Febriyaningsih; Noveri Aisyaroh

Journal of Health Sciences, Public Health and Pharmacy 2025 International Forum of Researchers and Lecturers

Syphilis is one of the reproductive health problems that remains a challenge in Indonesia, with a trend of increasing cases, while the level of adolescent knowledge about this disease is still low. Educational efforts are needed to improve adolescent understanding, one of which is through video media which is considered more interesting because it combines visual and audio elements. This study aims to evaluate the effectiveness of video as an educational medium in improving adolescent knowledge about syphilis at SMKS Al Hikmah 2 Sirampog, Brebes Regency. This type of research is a pre-experimental study with a one group pretest-posttest design. The study sample consisted of 47 students selected using a purposive sampling technique. The research instrument was a syphilis knowledge questionnaire administered before and after the educational video intervention. Data analysis used the Wilcoxon Signed Rank Test and N-Gain calculation. The study showed that Results Before the intervention, the level of knowledge of respondents was in the good category for 24 students (51.1%), sufficient for 11 students (25.5%), and poor for 12 students (23.4%). After being given the educational video intervention, there was a significant increase with all respondents (100%) being in the good category. The Wilcoxon Signed Rank Test showed a significant difference between pretest and posttest scores (p-value = 0.000). N-Gain analysis categorized the increase in knowledge as high. The study concluded that video media has proven effective as an educational tool in increasing adolescent knowledge about syphilis, making it a viable alternative learning medium in reproductive health programs.

Molle, Jhonderic

International Journal of Christian and Catholic Philosophy 2025 International Forum of Researchers and Lecturers

Contemporary church ministry is often trapped in a seasonal pattern, with increased activity only during major events like Christmas and Easter, while stagnating at other times. This phenomenon indicates a fundamental problem in leadership patterns that are not poverty-oriented. This article analyzes the roots of seasonal church ministry through a qualitative-descriptive approach and theological reflection based on Osmer's framework. Literature reviews by Barna, Maxwell, Banks & Ledbetter, as well as the leadership principles of Jesus Christ, show that seasonality is eliminated by reactive leadership that lacks a long-term vision, minimal spiritual training, and a weak ministerial cadre system. As a solution, this article offers a sustainable leadership model that emphasizes a year-round discipleship vision, ministerial training and regeneration, systematic ministry evaluation, and the spiritual example of leaders. This model is believed to help churches experience stable growth, establish a consistent ministry rhythm, and present relevant evidence to the world. Thus, sustainable leadership is a strategic and theological approach to addressing seasonal ministry and strengthening the mission of the church today.

Nurwihda Ramadani; Sakina Sakina; Putri Abelia Z; Kurniati Kurniati

Jurnal Hukum dan Sosial Politik 2025 International Forum of Researchers and Lecturers

Injustice against women in contemporary Islamic law practice is still a serious problem, especially in cases of divorce, child custody, and the division of common property, which are often decided textually without considering the social, economic, and psychological aspects of women. This phenomenon shows that the application of Islamic law is still normative and does not fully reflect substantive justice as the purpose of maqāṣid al-syarī'ah. This research aims to analyze the nature of justice for women in the modern era, identify the steps needed to realize this justice, and formulate Islamic legal solutions based on maqāṣid al-syarī'ah that can be applied contextually in the religious justice system. The research method used is qualitative with a normative-empirical approach through literature analysis, case studies, and empirical data from religious court decisions and reports of official institutions such as Komnas Perempuan. The results of the study show that justice for women can only be achieved through a dynamic maqāṣid approach, by placing the interests of women and children above the legal-formalities of classical fiqh. The efforts needed include the integration of empirical data in judges' decisions, reform of religious justice policies, increasing the capacity of judges in understanding maqāṣid, and empowering women through legal literacy.

Dini Adellia Angel; Sherin Himatussabrina Azzahra; Andina Rizky Ramadhani; Luthfa Nugraheni

Jurnal Motivasi Pendidikan dan Bahasa 2025 International Forum of Researchers and Lecturers

This study aims to examine self-confidence issues in elementary school students, particularly second-grade students at SDN 1 Gulang. Various problems identified included shyness, low self-confidence, fear of performing in front of the class, and a tendency to withdraw from social settings. This study used a qualitative approach with data collection techniques including interviews and observations to identify factors contributing to low self-confidence and the roles of teachers and parents in developing it. The results indicate that low student self-confidence is influenced by internal factors, such as fear, anxiety, and lack of courage, as well as external factors, including family parenting styles, the social environment, and learning experiences at school. Teachers play a strategic role by providing emotional support, positive motivation, and implementing active learning strategies that encourage student engagement. Furthermore, parents play a crucial role in providing guidance, supportive parenting styles, and appropriate social stimulation. This study concludes that efforts to improve student self-confidence require consistent and ongoing collaboration between teachers and parents.

Noe'man, Achmad; Samsinar; Wibowo, Agung

Journal of Information Technology and Computer Science 2025 International Forum of Researchers and Lecturers

Recommender systems play a critical role in shaping user decisions across digital platforms; however, the increasing complexity of recommendation algorithms has raised serious concerns regarding transparency, trust, and accountability. This study focuses on enhancing the transparency of recommender systems by integrating Explainable Artificial Intelligence (XAI) techniques within a MovieLens-based recommendation framework. The primary problem addressed is the opacity of conventional recommendation models, which limits user understanding of why certain items are recommended and may reduce trust, perceived fairness, and system acceptance. Accordingly, the main objective of this research is to design and evaluate a hybrid explainable recommender system that balances predictive accuracy with human-understandable explanations. The proposed approach combines Matrix Factorization, feature-importance-aware neural networks, and knowledge graph embeddings to construct a robust recommendation model. To enhance explainability, multiple XAI strategies are integrated, including model-agnostic methods (LIME, SHAP, and CLIME), argumentation-based explanations, and context-aware personalized explanations. A comprehensive evaluation framework is employed, incorporating algorithmic metrics (accuracy, fidelity, robustness, counterfactual consistency, and fairness) alongside human-centered evaluations measuring trust, transparency, cognitive load, and perceived usefulness. Experimental results demonstrate that the knowledge graph–enhanced hybrid model achieves superior recommendation accuracy compared to baseline approaches. Moreover, context-aware explanations consistently outperform other methods in terms of fidelity, robustness, and user-perceived transparency, while argumentation-based explanations are found to be the most persuasive. CLIME offers a strong balance between technical stability and interpretability. The findings indicate that no single explainability technique is universally optimal; instead, hybrid and adaptive explanation strategies are most effective. In conclusion, this study confirms that human-centered, context-adaptive XAI significantly improves transparency and user trust in recommender systems, highlighting explainability as a fundamental component rather than an optional enhancement.

Noronha, Marcelino Caetano; Dwiasnati, Saruni; Helena P Panjaitan, Cherlina

Journal of Information Technology and Computer Science 2025 International Forum of Researchers and Lecturers

Abstract: The rapid diffusion of Generative Artificial Intelligence (AI) has intensified public debate regarding its benefits, risks, and societal implications. This study investigates public sentiment and thematic structures surrounding Generative AI by analyzing Twitter discourse as a representation of large-scale, real-time public perception. The research addresses two main problems: how public sentiment toward Generative AI is distributed and what dominant themes shape this perception. Accordingly, the objective is to map both emotional polarity and thematic narratives embedded in social media conversations. A computational mixed-methods approach was employed using a dataset of 12,470 tweets collected on 17 December 2024. Sentiment classification was conducted using a transformer-based DistilBERT model, while semantic representations were generated with Sentence-BERT. Topic modeling was performed using BERTopic, integrating HDBSCAN clustering and class-based TF-IDF to extract coherent and interpretable topics. Human-in-the-loop validation supported the interpretive robustness of topic labeling. The findings reveal that public sentiment toward Generative AI is predominantly positive (41.8%), particularly in relation to productivity enhancement, education, and creative applications. Neutral sentiment (31.4%) reflects informational discourse, while negative sentiment (26.8%) centers on ethical concerns, privacy risks, misinformation, and AI hallucinations. Seven dominant topics were identified, with clear topic–sentiment alignment showing optimism in utility-driven themes and skepticism in ethics- and risk-related discussions. In conclusion, public perception of Generative AI is dualistic—characterized by strong enthusiasm alongside persistent caution. These results provide empirical insights for AI governance, responsible innovation, and future research on socio-technical impacts of Generative AI. *    

Dony Kusuma Madani

Jurnal Hukum dan Sosial Politik 2025 International Forum of Researchers and Lecturers

Intellectual Property Rights (IPR) have the potential to be recognized as an object of Rahn Tasjily collateral because they meet the criteria of property that can be transferred in accordance with the principles of muamalah in Islamic banking. However, its implementation faces legal challenges, particularly related to the dualism between the provisions of Fiduciary Guarantee (UUJF), which contains potential riba and gharar, and the DSN-MUI Fatwa No. 68/2008, which rejects such non-Sharia elements. This study aims to analyze the position of IPR as marhun according to the principles of muamalah and to identify substantial barriers in its application in Islamic Financial Institutions (LKS), particularly in the aspects of valuation and execution. The method used is normative law with an approach to regulations and concepts, analyzed descriptively and qualitatively using secondary data. The study concludes that the conflict between UUJF and Rahn Tasjily, the high risk of gharar in valuation, and the delays in execution due to the Constitutional Court's decision, highlight the urgent need for OJK and DSN-MUI to issue technical regulations to harmonize and mitigate risks in accordance with Sharia principles.

Hearty Efifania Ose Payon

DIAGNOSA: Jurnal Ilmu Kesehatan dan Keperawatan 2025 International Forum of Researchers and Lecturers

Anemia is a problem of health in young women. Anemia is a condition in the concentration levels of hemoglobin in the blood is low, one of the efforts to improve the levels of Hemoglobin by non Pharmacology given soy edamame. Is a kind of soy beans which the iron content of substance more than other types. In addition to iron, also contained Vit C, B12, and folic acid, which is also a constituent of hemoglobin in the blood. The purpose of this research is to know the effect of granting soy edamame to increased levels of hemoglobin in on young women. The research design used was quasy eksperiment. Population of young women who are experiencing anemia in boarding schools of Tahfiz Hisbah Al Fatih as many as 20 people, with the total sampling techniques. Research instrument is the observation sheet and tool checks digitally Hemoglobin. Results of the study were analyzed using paired t-test Test and independent t Test. The results obtained from this research is the following value mean increased levels of Hb after given Soy edamame was 0.46 gdl and mean increased levels of Hb after administering a local soybean is 0.18 gdl. This indicates that after the granting of the soy edamame tablet better if compared to a local soybean delivery after this. Research analysis of Hb levels after administering a local soybean or edamame soybeans gained ρ-value 0.006 (α = 0 .05), then it can be inferred that H0 is rejected and there is meaning accepted H1 influence awarding of soy edamame to increased levels of Hb teen daughter in boarding schools of Tahfiz Hisbah Al Fatih. For young women in particular are expected to eat green vegetables and legumes, especially soy edamame to prevent as well as treat mild anemia.

Rahman Abdillah; Alfito Yudha Ramadhan; Wawan Hermawansyah; Ibnu Adkha; Nur Alam

Jurnal Sistem Informasi dan Ilmu Komputer 2025 International Forum of Researchers and Lecturers

The purpose of this scientific paper is to design and implement a knowledge-based expert system to assist students in determining their major specializations at Vocational High Schools (SMK) more objectively and accurately. A major problem frequently faced by SMK students is the mismatch in department selection caused by a lack of understanding regarding their own potential and the specific criteria of each competency. To address this issue, the system was developed using the Forward Chaining method as the inference engine. This method operates in a data-driven manner, beginning with the collection of facts such as interests, academic abilities, and psychological aspects, which are then matched against a Knowledge Base consisting of IF-THEN logical rules. Based on system testing results, the inference engine is capable of processing the list of facts to generate a specialization diagnosis for SMK students and provide the most relevant departmental recommendations, such as Computer and Network Engineering (TKJ), Accounting, Office Automation and Governance (OTKP), or Marketing. The research results indicate that the implementation of the Forward Chaining method is effective in accelerating the decision-making process and minimizing placement errors. This expert system is expected to serve as a tool for Guidance and Counseling (BK) teachers in providing appropriate career direction for students based on structured empirical data.

Agus Rustamana; Zidah Fadzilah; Erika Cahaya Safitri; Muhammad Reza Pahlevi; Faza Amania +1 more

Jurnal Insan Pendidikan dan Sosial Humaniora 2025 International Forum of Researchers and Lecturers

Development in Banten Province has created conflict in development due to the dominance of a minimalist modern science approach, which prioritizes economic growth while ignoring environmental carrying capacity and socio-cultural values. As a result, Banten faces a serious environmental crisis, as evidenced by high emissions of air pollutants (PM2.5, SO2) and river water pollution by industrial waste. This study aims to analyze the negative impacts of this disorganized model and propose a comprehensive solution framework. This study formulates the Holistic Development Model (HDM). The HDM is a transformative solution that synergistically integrates three pillars: Modern Science (providing technology and data), the Ecosystem Approach (providing a systemic framework and nature-based solutions), and Local Cultural Values ​​(forming the basis of ethics and social motivation) through a Systematic Literature Review and Conceptual-Case Analysis. The implementation of MPH in case studies such as Integrated Coastal Management and Integrated Agriculture demonstrates that this integration produces high-yielding, equitable, and sustainable systems. In conclusion, MPH is a crucial strategy for Banten to shift from destructive development to equitable, resilient, and locally rooted development, making ecosystem health a key measure of success.

Hasyarania Hasyarania; Nurjihad Nurjihad

Jurnal Hukum dan Sosial Politik 2025 International Forum of Researchers and Lecturers

Marriage is the only way to legalize the relationship between men and women in order to realize the happiness of family life. Marriage is also a complement to the religion of Muslims. However, because marriage basically unites two different individuals, it certainly does not rule out the possibility of differences of opinion and other problems. Divorce is the last resort for a marital relationship that can no longer be maintained, divorce can occur for several reasons, including because the couple has changed religions, as contained in the Compilation of Islamic Law Article 116 letter H. Divorce certainly causes a legal consequence, one of which is the effect on children. If the divorce occurs because the wife or a mother has changed, then how is the determination of custody of a child who has not been mumayyiz. The purpose of this study is to find out the judge's considerations in determining child custody due to divorce because the couple changed religion in the decision Number 1515/Pdt.G/2015/PA.Smn. This research is a normative-empirical legal research, this research data uses secondary data consisting of primary, secondary and tertiary legal materials. To complete the secondary data, interviews were also conducted with the judge at the Sleman Religious Court. Based on the results of the research and analysis that has been carried out, it can be concluded that the judge's consideration in deciding the case of determining child custody due to divorce caused by a couple converting (apostasy) at the Sleman Religious Court was given to the Applicant as his father in order to maintain the safety of his child's faith and the best interests for his child and for the sake of the child's future.

Aditya Nurfirmansyah; Rudy Mardianto; Misgiati Misgiati

DIAGNOSA: Jurnal Ilmu Kesehatan dan Keperawatan 2025 International Forum of Researchers and Lecturers

Human Immunodeficiency Virus (HIV) infection leading to Acquired Immune Deficiency Syndrome (AIDS) remains a global public health issue, with 39 million people living with HIV worldwide in 2022. Although X Hospital in Malang City provides a comprehensive care program, internal data shows a significant level of non-adherence to antiretroviral (ARV) therapy, often in the form of irregular consumption or discontinuation of medication without medical recommendation. This observational study with a cross-sectional approach aims to identify the determinants of ARV non-adherence, involving 81 non-adherent AIDS patients at Hospital X through total sampling techniques. The characteristics of the respondents were dominated by males, highly educated, and working in the non-government sector, with the majority using the ARV regimen TLD, COTRIMOXAZOLE. The results of statistical analysis indicate that all eight determining variables tested show a highly significant positive correlation (p < 0.001) with non-compliance, meaning that the more severe the problems with these factors, the lower the patient compliance. Furthermore, the top five factors showed a very strong positive correlation (r > 0.80) with non-adherence, namely motivation/depression, social support, communication with service providers, treatment costs, and age or routine. These findings underscore that these five key determinants must be a crucial focus in designing and implementing targeted intervention strategies to effectively improve patient adherence to ARV therapy.

Juan Agustino Parulian Sitohang; Miska Irani Br Tarigan; Theresa Sisilia Situmorang

International Journal of Management Science and Entrepreneurship 2025 International Forum of Researchers and Lecturers

This study investigates the role of knowledge management (KM) capabilities in enhancing managerial decision-making within organizational settings. Using a systematic review approach, ten peer-reviewed journals published between 2019 and 2024 were analyzed to identify key themes, patterns, and empirical findings related to knowledge management implementation and its influence on decision-making processes. The review reveals that strong knowledge management capabilities particularly in knowledge acquisition, storage, sharing, and utilization significantly contribute to improving the accuracy, speed, and strategic quality of managerial decisions. The findings also show that organizations with well-developed knowledge management infrastructures, supported by digital technologies and a culture of knowledge sharing, demonstrate greater adaptability, innovation, and problem-solving effectiveness. This study concludes that knowledge management capabilities are essential for strengthening evidence-based decision-making and enhancing organizational competitiveness. Implications for managers emphasize the need to invest in knowledge management systems and foster collaborative knowledge practices. Suggestions for future research include expanding the scope to cross-industry comparisons and integrating knowledge management with emerging technologies such as AI-based decision support systems..

Dina Andiza

Law and Justice research journal 2025 International Forum of Researchers and Lecturers

This study discusses consumer protection in the circulation of illegal cosmetic products through electronic commerce systems, focusing on the implementation of Law Number 8 of 1999 concerning Consumer Protection. The main problems of the research include legal regulations related to illegal cosmetics, legal provisions regarding electronic commerce, and consumer protection mechanisms against the circulation of illegal cosmetics on e-commerce platforms. This study uses a qualitative method with a normative legal research approach through literature studies, which involves primary, secondary, and tertiary data sources. The results of the study show that cosmetic distribution permits are regulated in the Regulation of the Food and Drug Supervisory Agency Number 12 of 2023 concerning the Supervision of the Manufacture and Circulation of Cosmetics. In electronic commerce, transactions occur electronically between sellers and buyers by involving a third party as the platform provider. Dispute resolution between consumers and business actors is regulated in the Consumer Protection Law through two channels, namely litigation and out-of-court dispute resolution. The research concluded that every cosmetic in circulation must have a distribution permit in the form of a BPOM Notification, and business actors are responsible for providing compensation in the form of refunds or product replacements. The research recommendations emphasize the importance of consumer prudence, honesty of business actors, and the government's firmness in handling consumer problems.

Titi Resnawati Nazara; Ni Putu Martini Dewi

International Journal of Management Science and Business 2025 International Forum of Researchers and Lecturers

Poverty is a complex and multidimensional problem. It can be characterized as a condition in which there is a lack of aspects related to the quality of life. North Sumatra Province is known as one of the richest provinces in Indonesia with abundant natural resources and agricultural products such as petroleum, natural gas, palm oil, rubber, and forest products used as industrial materials. However, it still ranks among the provinces with the highest poverty rates in Indonesia. This study aims to analyze the effect of unemployment rate, economic growth, and Human Development Index (HDI) on poverty in 14 districts/cities of North Sumatra Province during the 2016–2023 period. The analytical method used is panel data regression with the Fixed Effect Model (FEM) approach. The results of this study indicate that simultaneously, the three independent variables have a significant effect on poverty. Partially, unemployment has a positive and significant effect, while economic growth and HDI have no significant effect on poverty.

Tetty Siska; Hasnah Faizah

International Journal of Educational Sciences and Languages 2025 International Forum of Researchers and Lecturers

The Merdeka Curriculum policy, initiated by the Ministry of Education, Culture, Research, and Technology (Kemendikbudristek), marks a significant paradigm shift in the Indonesian educational landscape. This curriculum emphasizes student-centered learning, flexibility, and the development of competencies according to students' interests and talents. This study aims to critically analyze the relevance of the philosophy of progressivism, pioneered by John Dewey, as a conceptual foundation for the implementation of the Merdeka Curriculum. Using a systematic literature review method on 15 Sinta indexed scientific journals (minimum Sinta 4) published between 2018-2024, this study examines the alignment between the core principles of progressivism such as experience as the basis of learning (learning by doing), the teacher's role as a facilitator, problem-solving, and democratic education and the essence of the Merdeka Curriculum policy. The analysis reveals a strong alignment between the two concepts. Project-based learning, content differentiation, and formative assessment within the Merdeka Curriculum are concrete manifestations of progressive ideas. However, this study also identifies implementation challenges, such as teacher readiness, school culture transformation, and resource availability, which can hinder the internalization of this philosophy at the practical level. It is concluded that a deep understanding of the philosophy of progressivism by stakeholders, especially educational managers and teachers, is crucial to ensure that the Merdeka Curriculum becomes not just an administrative change, but also a substantive and sustainable pedagogical transformation.

Nurul Riza Armita; Anik Purwati

Journal of Health Sciences, Nursing and Nutrition 2025 International Forum of Researchers and Lecturers

In order to guarantee the best possible maternal health and fetal growth throughout pregnancy, complementary services for expectant mothers are required. These services include nutrition, mental health, and supplementary medical treatment. According to data, 70% of pregnant women have low back discomfort. According to a different poll, eight out of ten third-trimester pregnant women report having back pain. Doing Childpose (Balasana) exercises is one more way to lessen this problem. This study sought to ascertain if Childpose (Balasana) exercises were beneficial in lowering low back pain complaints among pregnant women in their third trimester at the South Bolango City Health Center. This study employed a quasi-experimental pretest-posttest approach with a sample of 34 pregnant women in the third trimester. There were twenty participants in the study's sample. Childpose or balasana exercises are beneficial in relieving back discomfort in third trimester pregnant women at the South Bolango Health Center, according to the data, which indicated a P-value of 0.000 <0.05.

Andhika Matsubara, Septien; Hamdi , Syukrul

International Journal of Education and Social Sciences 2025 International Forum of Researchers and Lecturers

This study aims to analyze the influence of the Problem-Based Learning (PBL) model assisted by e-LKPD on students’ problem-solving abilities and self-confidence in vocational high schools. Specifically, the objectives are: (1) to examine the simultaneous effect of the PBL model assisted by e-LKPD on both variables, (2) to determine its effect on problem-solving ability, and (3) to evaluate its effect on self-confidence. A quantitative approach with a quasi-experimental pretest–posttest control group design was applied. The population consisted of all 10th-grade students at SMK Negeri 1 Tarakan, while the sample was selected using purposive sampling, resulting in class X Marketing 1 (35 students) as the experimental group and class X Culinary 2 (34 students) as the control group. Research instruments included a problem-solving test and a self-confidence questionnaire. Hypothesis testing utilized Hotelling’s T² and independent sample t-tests. The findings showed that 97% of students in the experimental class met the Learning Objectives Mastery (KKTP), compared to only 18% in the control group. Improvement in the experimental group was categorized as high, whereas in the control group it was moderate. Self-confidence also increased significantly in the experimental group, with most students moving from low to high categories. Hotelling’s Trace (Fcount = 77.109, p < 0.001) and t-tests confirmed significant effects on both problem-solving (tcount = 11.657) and self-confidence (tcount = 8.140), proving that the PBL model assisted by e-LKPD effectively enhances students’ abilities and confidence.