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This research started from the difference in understanding of mathematical concepts found in students in grades XI-1 of SMA Kanjeng Sepuh Sidayu. The main purpose of this study is to analyze students' understanding of mathematical concepts based on extroverted and introverted personalities, with an ethnomathematical approach on the building of the Kanjeng Sepuh Sidayu Mosque. The research subjects consisted of four students who were selected with two personality categories, namely two students with introverted personalities and two students with extroverted personalities, which were determined through a personality questionnaire. Data collection techniques were carried out using questionnaires to find out personality types, mathematical concept understanding tests, and in-depth interviews to further explore students' understanding. The results showed that there were significant differences in the understanding of mathematical concepts between students with introverted and extroverted personalities. Students with introverted personalities show good ability to meet indicators 1, 3, and 5. This indicator includes the ability to restate a concept, provide examples and non-examples of a concept, and apply concepts or logarithms in problem solving. Students with extroverted personalities, on the other hand, excel in indicators 1, 2, and 4. This indicator includes the ability to restate a concept, classify objects according to the concept, and use and choose certain procedures or operations in solving problems. This study provides insight that the understanding of mathematical concepts is not only influenced by cognitive abilities alone, but also by students' personality factors. Introverted and extroverted personalities affect the way they absorb and apply mathematical concepts. Therefore, it is important for educators to pay attention to these differences in designing teaching approaches that suit the characteristics of the students.

This study aims to examine the impact of personality types—introvert, extrovert, and ambivert—on the social interaction abilities of KPI-D students within the Faculty of Da'wah and Communication. Social interaction is a crucial aspect of campus life, yet personality differences often create challenges in communication and social adaptation. Using interview methods with six respondents representing different personality types, the research found that introverted students tend to face difficulties in engaging in social activities, while extroverted students easily socialize but may lose academic focus. Ambivert students demonstrate flexibility, yet sometimes struggle with indecision in social situations. The study highlights the importance of developing social skills tailored to each personality type and fostering an inclusive, tolerant campus environment. These findings are expected to contribute to strategies for improving communication and social development among students.

As a result of the analysis carried out, it can be concluded that the personality and professional behavior of educators at the As-Sulthon Mersam – Batang Hari Islamic Boarding School have a significant influence on the effectiveness of education at the Islamic boarding school. Warrior Personality Influences Professional Behavior The personality of educators in Islamic boarding schools, which tend to vary between extrovert and introvert, plays an important role in determining their leadership style and interactions with students and colleagues. Overall, developing the personality and professional behavior of educators must be a priority to create a conducive educational environment, improve the quality of learning, and encourage the progress of students at the As-Sulthon Mersam – Batang Hari Islamic Boarding School.

A hospital is an organization that, with all its health facilities, is expected to help patients improve their health and achieve optimal healing both physically, psychologically and socially. One profession that has an important role in maintaining the quality of health services is nursing. Nursing is the activity of providing care to individuals, families, groups or communities, whether sick or healthy, because nurses in carrying out nursing practice must always improve the quality of service by following developments in science and technology through education and training according to their field. Work. This research is a type of quantitative research with a cross-sectional design approach. The results of the analysis show that the Chi Square value for extroverted personality characteristics is 0.030 and introverted personality is 0.019, indicating that there is a relationship between personality characteristics and nurses' caring behavior. Based on the characteristics of the respondents, it is known that the majority of respondents are women, with the largest age range being 22-40 years, the dominant education level is D-III nursing and the majority of respondents are single. The results of the chi-square analysis showed that the significant relationship between personality characteristics (extroversion and introversion) has major implications for nursing practice and human resource management in health care settings. A deep understanding of these interrelationships provides a foundation for improving the quality of nursing care, managing balanced care teams, and personalizing approaches to providing care to patients.

This study aims to determine the effect of extroverted and introverted personalities on speaking skills. This type of research is a quantitative research with a survey method (expo facto), with a comparative causal design. The objects in this study were students of the Indonesian language and literature education study program. The total population is 238 students, the sample size is 15%, namely 36 students. Accidental sampling technique. The results showed that there were 55.6% or 20 students with introverted personalities and 44.4% or 16 students with extroverted personalities. The results of the mean scores of students' speaking skills show that students with introverted personalities have better speaking skills scores than students who have extroverted personalities. The mean score of students with introverted personalities is 15.65 while the average score of students with extroverted personalities is 13.25. From the results of hypothesis testing with a one-way ANOVA test, the value of Fcount is 1.655, Ftable 4.13, a significance level of 0.05, so Fcount <Ftable, it is stated that Ha is rejected and Ho is accepted. Based on the results of the above study, it was concluded that there was no influence between extroverted and introverted personality types on students' speaking skills.