International Journal of Education and Social Science Research ISSN 2581-5148 Vol. 3, No. 01; 2020 http://ijessr.com Page 158 RELATIONSHIP BETWEEN THE UNDERSTANDING OF INDONESIAN HISTORY AND THE NATIONALISM ATTITUDE OF STATE SENIOR HIGH SCHOOL STUDENTS Bagas Prakoso Wibowo 1 , Taat Wulandari 2 and Johan Setiawan 3 1,3 (Graduate School, Yogyakarta State University, Yogyakarta, Indonesia) 2 (Lecturer of Graduate School, Yogyakarta State University, Yogyakarta, Indonesia) Corresponding author: bagasprakoso.2018@student.uny.ac.id ABSTRACT This study aims to determine the relationship of understanding Indonesian history with the nationalism attitude of students of State Senior High Schools in Ngaglik District, Yogyakarta. This research is a type of correlational research that uses a quantitative approach. The research sample were 126 students, data collection using tests and questionnaires. Tests are used to reveal data about understanding Indonesian history, while questionnaires are used to reveal nationalism. The validity test of the instrument uses biserial point correlation and reliability test using the KR 20 formula. The data analysis technique uses quantitative descriptive analysis. Analysis prerequisite test includes normality test and linearity test. The hypothesis test uses Pearson product moment correlation. The results showed that there was a positive and significant correlation between the understanding of Indonesian history and the nationalism attitude of the students of State Senior High Schools in Ngaglik District, Yogyakarta. It shows that the rcalculation is 0.447> rtable 0.176 with a significance level of 0.000 <0.05. Thus, the higher the understanding of Indonesian history, the higher the nationalism of students. KEYWORDS: relationship, understanding of Indonesian history, nastionalm attitude 1. INTRODUCTION The younger generations are indicated that the value of their love for the country is decreasing. According to a survey of national values conducted by the Central Bureau of Statistics, out of 100 people in Indonesia there are 18 people who do not know the title of the national anthem of the Republic of Indonesia, then 24 people from 100 people in Indonesia do not memorize the principles of Pancasila. In addition, there are 53 percent of Indonesians not memorizing the national anthem (Latif, 2017). One of the factors that diminishes the sense of nationalism is globalization (Sariyatun, 2018). Globalization accompanied by a revolution in the field of ICT has an effect on the fading of the value of nationalism among the younger generation (Wuandari, 2010). Students as Indonesia's young generation are the backbone of the nation has been poisoned with various impacts caused by globalization (Sulistiyono, 2018). Students should be prepared to accept the changes, in order to be able to follow changes and adjust to stay in line with the flow of change as one of the Indonesian