@mastersthesis{digilib69885,
           month = {December},
           title = {PENGEMBANGAN MEDIA PEMBELAJARAN BUSSY JAR BERBASIS LOOSE PART UNTUK MENINGKATKAN KEMAMPUAN KOGNITIF ANAK USIA DINI},
          school = {UIN SUNAN KALIJAGA YOGYAKARTA},
          author = {NIM.: 22204032003 Aina Yulifa?atun Mufida},
            year = {2024},
            note = {Dr. Hj. Hibana, S.Ag., M.Pd.},
        keywords = {Bussy Jar Berbasis Loose Part, Kemampuan Kognitif, Anak Usia Dini},
             url = {https://digilib.uin-suka.ac.id/id/eprint/69885/},
        abstract = {Cognitive abilities at an early age are very important in everyday life. This ability refers to the way children think in solving problems, thinking logically and thinking symbolically. Loose part-based bussy jar media is designed with a variety of interesting activities to increase children's enthusiasm in learning activities. The study aims to determine: 1) Development of loose part-based bussy jar media to improve cognitive abilities of children aged 4-5 years, 2) the feasibility of loose part-based bussy jar media to improve cognitive abilities of children aged 4-5 years, 3) Effectiveness of loose part-based bussy jar to improve cognitive abilities of children aged 4-5 years.
The type of research used is Research and Development (R\&D) research with the ADDIE development model. The location of the research is at KB Paud Aisyiyah 02 Tambakromo Pati with a research sample of 18 children in group A. The data collection technique used is a lift with measurements using a Likert scale. The product validation test used is a feasibility test and an effectiveness test using the P search formula (percentage of validators). The effectiveness test was obtained using a paired sample t test with the One-Group Pretest-Postest Design model. The results of the study showed: 1) loose part-based bussy jar media was developed through the ADDIE stages. 2) The score of the results from media experts was 95\%, material experts were 88\% and teacher responses were 86\%, all three media feasibility assessment scores were in the category of "very feasible. 3) Loose part-based bussy jar media is effective to use with the results of the t-test data with a value of 0.00 which means less than ({\ensuremath{>}}) 0.05, meaning that there is a significant difference and increase before and after receiving treatment using loose part-based bussy jar media. The implications of the study relate to the results of the development of loose part-based bussy jar media which can be applied as an interesting, effective and educational media to improve problem-solving skills, logical thinking and symbolic thinking of children aged 4-5 years.}
}