KAJIAN MITOS EFIKASI DIRI TERHADAP BATU UNTUK PENAHAN BUANG AIR BESAR (THE STUDY OF THE MYTH OF SELF-EFFICACY AGAINST STONE DEFECATION) Abadina Ukhtisiwi 1 , Fanissa Azzahra 1 , Sulasi Nengsih, S.Pd. 2 1 Siswa SMAIT Iqra’ Kota Bengkulu, Indonesia 2 Guru SMAIT Iqra’ Kota Bengkulu, Indonesia Email: s.pejuang111291@gmail.com ABSTRACT This study aims to describe and compare the response of adolescents and adults of the North Bengkulu Seaside Village to the myth of defecating stones. Defecation is one of the defecation processes in the digestive system. Some lay people believe that grasping or pocketing stones can withstand the urge to defecate. This research was conducted with a structured observation and interview method. Sampling was carried out using purposive sampling techniques with adolescents aged 16-19 years and adults aged 26-35 years taken from 763 people. Out of 763 people, 43 are teenagers and 223 are adults. From the total population of adolescents and adults, 43 people were taken from adolescence and 27 from adulthood. Based on observations and interviews, as many as 76% of adolescents and 75% of adults who have committed and believed the myth. There was no significant difference between the responses of adolescent and adult respondents to the defecation myth. Shown with almost the same percentage value. The myth of defecation has been shown to be more effective in respondents who believe compared to respondents who do not believe in their teens or adults. This shows the existence of a suggestive factor in the minds of the population believing that this myth is indeed effective. Keywords: Stone, Defecation, Self-efficacy, Myth, Suggestion ABSTRAK Penelitian ini bertujuan untuk mendeskripsikan serta membandingkan respon warga usia remaja dan dewasa Desa Tepi Laut Bengkulu Utara terhadap mitos batu penahan buang air besar. Buang air besar adalah salah satu proses defekasi dalam sistem pencernaan. Pada sebagian masyarakat awam mempercayai bahwa menggenggam atau mengantongi batu dapat menahan keinginan buang air besar. Penelitian ini dilakukan dengan metode observasi dan wawancara yang terstruktur. Pengambilan sampel dilakukan dengan menggunakan teknik purposive sampling dengan kriteria usia remaja yaitu 16-19 tahun dan usia dewasa 2020 Buku Prosiding IFSA 2.0 Indonesian Fun Science Award 24