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All Journal International Journal of Educational Research and Social Sciences (IJERSC) Bulletin of Science Education
Liper Siregar
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Education Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences Other

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The Influence of Self-Efficacy and School Culture on the Job Satisfaction of RK Bintang Timur Private Elementary School Teachers Normalina Saragih; Effendi; Sherly; Marto Silalahi; Liper Siregar; Herman
Bulletin of Science Education Vol. 4 No. 3 (2024): Bulletin of Science Education
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bse.v4i3.1462

Abstract

The objectives of this research are: 1. To find out the picture self efficacy school culture and teacher job satisfaction. 2. To know the influence self efficacy and school culture on teacher job satisfaction both simultaneously and partially. This research uses a library research design and field research. The population in this study was all 33 teachers. The types of data used are qualitative data and quantitative data. The data sources used are primary data and secondary data. Data collection was carried out by interviews, documentation and questionnaires. The research instrument test used is the validity and reliability test. Data analysis techniques consist of normality tests, qualitative descriptive analysis and quantitative descriptive analysis. The results of this research can be concluded as follows: Self efficacy teachers are good, school culture is still strong enough, and teacher job satisfaction is high. There is a strong and positive relationship between self efficacy with school culture, teacher job satisfaction. The high and low level of teacher job satisfaction can be explained by the contribution of self efficacy  And  school culture. To optimize  self efficacy teachers are optimized by trying to make the work environment comfortable. To increase teacher job satisfaction with a review by the foundation with requests from school principals regarding salaries and other compensation received by teachers by comparing them with government regulations regarding UMR and also salaries in other schools that are parallel to the schools being managed
Comparison Analysis Of Optimal Portfolio Formation Results Using Single Index Model With Markowitz Model During The Covid 19 Pandemic In LQ 45 Index Company Elly Susanti; Nelly Ervina; Ernest Grace; Liper Siregar
International Journal of Educational Research & Social Sciences Vol. 2 No. 5 (2021): October 2021
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijersc.v2i5.177

Abstract

Investors with a conservative type have a tendency to avoid risk (avoid risk) can invest their funds. Therefore, a diversification is needed to determine the optimal stock portfolio, including the Markowitz model and the Single Index Model. This study aims to find out the comparison of optimal portfolio formation results by using markowitz model and single index model in the covid 19 pandemic as the object of research there are companies listed in LQ Index 45. For the period used is for 3 periods, namely February 2020 to July 2021. For data processing using the Microsoft Excel application program. The results of the expectations of return and risk from the Markowitz model and single index model show that the portfolio that is better used is the markowitz model because it has a higher return than the single index model.
Co-Authors Effendi ELLY SUSANTI Ernest Grace Herman Marto Silalahi Nelly Ervina Normalina Saragih Sherly