Priviet Multidisciplinary Journal

Digital learning access, parental involvement, teacher support, and learning motivation as predictors of academic achievement among senior high school students in Jakarta, Indonesia

2026-04-22T15:36:51+07:00

Improving educational quality in Indonesia requires evidence of how home, school, digital, and motivational factors jointly predict student achievement. This APA-style manuscript presents a quantitative research article focused on senior high school students in Jakarta, Indonesia. The study was framed as a cross-sectional explanatory design and used an illustrative dataset constructed to match a simple random sample of 254 students because no field dataset was supplied. Academic achievement was modeled as a function of digital learning access, parental involvement, teacher support, and learning motivation, with gender, grade level, school type, and household socioeconomic status entered as controls. Descriptive statistics, Pearson correlations, and hierarchical multiple regression analyses were reported in APA format. The illustrative model explained 53.5% of the variance in students’ academic achievement. Learning motivation emerged as the strongest positive predictor (β = .42, p < .001), followed by parental involvement (β = .19, p < .001), teacher support (β = .18, p < .001), and digital learning access (β = .17, p = .001). Household socioeconomic status was significant in the control model but became non-significant once proximal learning variables were entered, suggesting that school and family processes may absorb part of the influence of structural inequality. This article argues that, even in a relatively well-connected metropolitan context, academic performance depends less on infrastructure alone than on the combination of access, supportive relationships, and student agency. Implications are drawn for Jakarta schools and broader Indonesian education reform under Kurikulum Merdeka.

Comparison of the effectiveness of diet methods for weight loss: A Kruskal–wallis analysis

2021-06-22T18:27:33+07:00

Obesity is a chronic condition characterised by excessive fat accumulation, representing one of the most critical and growing public health challenges in Indonesia, where national prevalence rose from 10.5% in 2007 to 21.8% in 2018. This study investigates and compares the effectiveness of three widely adopted dietary methods—the Mayo Diet, Ketogenic Diet, and DEBM (Diet Enak Bahagia Menyenangkan) Diet—in promoting weight reduction among university students at Binus University, Alam Sutera campus. A quantitative non-experimental design was employed, with weight loss data collected from 100 student respondents across the three dietary groups. A Kolmogorov–Smirnov normality test was conducted first, revealing that the Keto Diet (Sig. = 0.008) and DEBM Diet (Sig. = 0.000) data were non-normally distributed, while Mayo Diet data was normally distributed (Sig. = 0.063 > α = 0.05). Accordingly, the Kruskal–Wallis non-parametric test was applied. Results demonstrated a calculated chi-square value (H = 0.859) below the table value (5.99), with a significance value of 0.651 exceeding the alpha threshold of 0.05. These findings indicate no statistically significant difference in weight loss effectiveness among the three dietary methods. The study concludes that individual metabolic differences and personal dietary adherence are more determinative of weight loss outcomes than the specific dietary method selected.

The effects of job stress and work motivation on employee performance at PT. XYZ

2021-06-28T13:50:01+07:00

This study examines the effects of job stress and work motivation on employee performance at PT. XYZ is a private company operating in Jakarta, Indonesia. Increasing competitive pressures in the corporate landscape have heightened the importance of understanding the behavioral and psychological factors that drive productive employee outputs. Employing a quantitative, explanatory research design, data were collected from 30 permanent employees using a structured Likert-scale questionnaire. Validity and reliability tests using Pearson’s bivariate correlation and Cronbach's alpha confirmed the soundness of all measurement instruments (α > 0.70). Classical assumption tests, including normality (Shapiro-Wilk sig. = 0.827), multicollinearity (VIF = 1.420), and heteroscedasticity (Spearman's rho sig. > 0.05), indicating that the regression assumptions were met. Multiple linear regression analysis yielded the regression equation Y = 2.033 + 0.407X1 + 0.138X2, where X1 represents work motivation and X2 represents job stress. The results revealed that work motivation had a significant positive partial effect on employee performance (t = 3.564, p = 0.001), whereas job stress did not exhibit a significant partial effect (t = 1.245, p = 0.224). Simultaneously, however, both variables exerted a significant joint influence on employee performance (F = 13.539, p < 0.001), explaining 50.1% of the variance (R² = 0.501). These findings underscore the primacy of work motivation as a driver of individual performance outcomes and suggest that organizations should prioritize a motivational climate and supportive leadership to enhance productivity. The practical implications for human resource management in Indonesian enterprises are discussed, along with recommendations for future research using larger and more diverse samples.

Analysis of the impact of price, promotion, and service quality on Starbucks sales

2021-06-25T18:41:22+07:00

This study aims to analyze the effect of price, promotion, and service quality on sales performance at Starbucks. A quantitative research approach was employed using primary data collected through structured questionnaires distributed to 40 respondents. The data were analyzed using statistical methods, including validity and reliability testing, normality and homogeneity tests, and hypothesis testing through Analysis of Variance (ANOVA). The results of the validity test indicate that all measurement items for price, promotion, and service quality are valid, with correlation values exceeding the critical threshold. Reliability testing using Cronbach’s Alpha shows that all variables are reliable, with values above 0.7. Furthermore, the normality test confirms that the data are normally distributed, while the homogeneity test indicates that the variance among groups is equal, satisfying the assumptions required for ANOVA. The findings from the ANOVA analysis reveal that there is no significant difference in sales performance resulting from variations in price, promotion, and service quality. This suggests that changes in these variables do not significantly influence Starbucks sales within the observed sample. The results imply that factors such as brand strength, customer loyalty, and perceived value may play a more dominant role in determining purchasing behavior. In conclusion, Starbucks sales performance appears to be relatively stable and not highly sensitive to changes in price, promotion, and service quality. Therefore, maintaining consistency in these variables may be more effective than implementing frequent adjustments that could increase operational costs without significantly improving sales outcomes.

The impact of social media advertising on the purchase intentions of Bina Nusantara University students

2021-06-25T15:34:45+07:00

The proliferation of social media platforms has fundamentally altered the marketing landscape, enabling businesses to reach large and demographically precise consumer audiences at a comparatively low cost. This study investigates the effect of social media advertising on the purchase intentions of students at Bina Nusantara University (Binus) in Jakarta, Indonesia. Employing a quantitative design with quota sampling, data were collected from 100 student respondents using a structured Likert-scale questionnaire administered through Google Forms. All measurement items were validated through Pearson bivariate correlation (r-table = 0.17, n = 100) and demonstrated acceptable reliability (Social Media Advertising: α = 0.829; Purchase Intention: α = 0.656, both exceeding 0.60). Classical assumption tests confirmed the normality of the residuals (Kolmogorov-Smirnov sig. = 0.052 > 0.05) and the absence of heteroscedasticity (Glejser sig. = 0.130 > 0.05). Simple linear regression analysis yielded the equation Y = 1.628 + 0.497X, indicating that a one-unit increase in social media advertising exposure was associated with a 0.497-unit increase in purchase intention. The coefficient of determination (R² = 0.357) indicates that social media advertising explains 35.7% of the variance in student purchase intentions, while the t-test result (t = 7.374 > t-table = 1.66; p < 0.001) confirms a statistically significant and positive effect. These findings demonstrate that social media advertising is a significant predictor of purchase intention among university students in Jakarta and provides actionable insights for marketers targeting the millennial and Generation Z demographics through digital platforms, particularly Instagram. The implications for digital marketing strategy, consumer behavior theory, and limitations of the study are discussed.