Vol. 7 No. 5 (2026): September 2026
Open Access
Peer Reviewed

The Influence of Product Quality and Promotion On Purchasing Decisions: A Case Study of Pojok Kopi In Depok

Authors

Sela Novitasari , Sahwa Damayanti

DOI:

10.46729/ijstm.v7i5.1464

Published:

2026-09-14

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Abstract

The problem in this study is the lack of consumers or customers who buy at the Coffee Corner from year to year. This study aims to determine the influence of Product Quality, and Promotion, on Purchase Decisions and to determine the influence of Product Quality, Promotion, simultaneously or together on purchase decisions in Coffee Corner. The research method used is the quantitative method. The data source used is primary data, which was obtained from the distribution of questionnaires to respondents. The technique used in determining the sample is axial sampling. The data was processed and analyzed using multiple linear regression and using SPSS for Windows Version 26. The results of this study show that (1) The effect of the magnitude of the determination coefficient (R Square) is 0.140 or equal to 14.0%. This number means that product quality, promotion, affects the purchase decision by 14.0%. (2) The simultaneous influence of free variables on bound variables obtained a calculated value of 3.881 and a variable of 2.460 or 3.881 > 2.460 with a significant probability value of 0.012 or 0.000 <0.05 (H0 rejected and H1 accepted). Thus, it can be said that there is a significant influence together between the free variable on the bound variable and can be used to predict the influence on the purchase decision.

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Author Biographies

Sela Novitasari, Universitas Pamulang, Indonesia

Author Origin : Indonesia

Sahwa Damayanti, Universitas Pamulang, Indonesia

Author Origin : Indonesia

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How to Cite

Novitasari, S., & Damayanti, S. (2026). The Influence of Product Quality and Promotion On Purchasing Decisions: A Case Study of Pojok Kopi In Depok. International Journal of Science, Technology & Management, 7(5), 628–637. https://doi.org/10.46729/ijstm.v7i5.1464