aspg-21-2228-1791479368 20261008170928 American Scientific Publishing Group admin@americaspg.com American Scientific Publishing Group International Journal of Neutrosophic Science IJNS 2692-6148 2690-6805 2024 23 1 Sumyyah Al-Hijjawi Department of Mathematics, Faculty of Science, Zarqa University, Zarqa 13110, Jordan; Department of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, B Abd Ghafur Ahmad Department of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia Shawkat Alkhazaleh Department of Mathematics, Faculty of Science and Information Technology, Jadara University, Irbid, Jordan The neutrosophic soft set emerges as a highly valuable and efficient adaptation of soft sets, specifically addressing parameterized values of alternatives. However, numerous decision-making algorithms rooted in neutrosophic soft sets often neglect the external factors impacting their effectiveness. This paper introduces the innovative concept of an effective neutrosophic soft expert set, meticulously crafted to encapsulate external influences on both neutrosophic soft sets and expert opinions within a unified model. This eliminates the necessity for additional operations. Notably, our groundbreaking approach seamlessly amalgamates the strengths of the neutrosophic soft expert set and the effective set, resulting in heightened efficiency and realism in this domain. The article comprehensively explores the fundamental operations of an effective neutrosophic soft expert set, elucidating these processes through apt examples. Finally, the paper showcases the practical application of this concept in decision-making problems, providing algorithms and illustrative examples to underscore its efficacy. 2024 27 50 2228 https://creativecommons.org/licenses/by/4.0/ 10.54216/IJNS.230103 https://www.americaspg.com/journal/21/article/2228 https://www.americaspg.com/storage/71699913790.pdf