Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Jurnal Rekayasa Sistem Informasi dan Teknologi Escalate : Economics and Business Journal
Rikshintia Panjaitan
Universitas Methodist Indonesia
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
The Influence of TikTok Beauty Influencer Credibility on Skincare Product Purchasing Decisions of Indonesian Methodist University Students Rikshintia Panjaitan; Darwis Robinson Manalu
Escalate : Economics and Business Journal Vol. 4 No. 3 (2026): Escalate : Economics and Business Journal
Publisher : Takaza Innovatix Labs Ltd.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61536/escalate.v4i3.565

Abstract

The development of TikTok as a digital marketing medium has made beauty influencers one of the main sources of information in skincare product purchasing decisions among students. This study aims to analyze the influence of TikTok beauty influencer credibility on skincare product purchasing decisions among students at Methodist University Indonesia. The study used a quantitative approach with a descriptive and verification survey method. The study population was active students at Methodist University Indonesia who had watched beauty influencer content on TikTok and purchased skincare products based on their recommendations. A sample of 100 respondents was selected using a purposive sampling technique. Data were collected through a questionnaire with a five-point Likert scale, then analyzed using validity tests, reliability tests, descriptive analysis, normality tests, linearity tests, heteroscedasticity tests, and simple linear regression with the help of IBM SPSS Statistics. The results showed that TikTok beauty influencer credibility had a positive and significant effect on skincare product purchasing decisions with a regression coefficient value of 0.511, a significance value of 0.000, and a determination coefficient of 28.3%. This study concludes that the higher the credibility of beauty influencers, reviewed in terms of expertise, trustworthiness, and attractiveness, the higher the decision to purchase skincare products among students at Methodist University of Indonesia.
Model Aturan Asosiasi Apriori FP-Growth Kosmetik Elvi Dewi Purnama Sari Simanjuntak; Rikshintia Panjaitan; Ester Agnesya Nainggolan; Agung Permana Parangin-angin; Indra M Sarkis S
Jurnal Rekayasa Sistem Informasi dan Teknologi Vol. 4 No. 1 (2026): Agustus
Publisher : Yayasan Nuraini Ibrahim Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70248/jrsit.v4i1.4529

Abstract

Pertumbuhan industri kosmetik di Indonesia yang semakin pesat meningkatkan volume dan variasi transaksi penjualan, sehingga pelaku usaha ritel kosmetik dituntut memahami pola pembelian konsumen guna menyusun rekomendasi produk, strategi cross-selling, serta penataan rak yang tepat sasaran. Penelitian ini menerapkan Market Basket Analysis melalui Algoritma Apriori dan FP-Growth untuk membentuk Association Rule dari 355 transaksi penjualan 13 jenis produk kosmetik. Nilai minimum support 5% dan minimum confidence 30% dipilih agar kombinasi item berfrekuensi sedang tetap tercakup dalam analisis, namun pola yang bersifat kebetulan dapat dihindari. Kedua algoritma menghasilkan 89 frequent itemset dan 21 Association Rule yang identik, menegaskan bahwa perbedaan keduanya hanya terletak pada strategi pencarian, bukan pada akurasi maupun kelengkapan hasil. Pola asosiasi paling signifikan (lift ratio > 1) ditemukan pada pasangan Toner dengan Sunscreen, Eyeliner dengan Powder, Toner dengan Foundation, serta Foundation dengan Mascara, yang menunjukkan keterkaitan pembelian positif antar produk skincare maupun makeup. Aturan-aturan tersebut diterjemahkan menjadi empat paket bundling siap terap, yaitu Rutinitas Skincare Dasar, Base Makeup Wajah, Makeup Mata & Wajah, serta Lip & Glow. Secara manajerial, keempat paket bundling ini dapat dimanfaatkan pelaku usaha ritel kosmetik untuk mendukung strategi cross-selling, efisiensi penataan rak, dan peningkatan nilai transaksi rata-rata pelanggan.
Co-Authors Agung Permana Parangin-angin Darwis Robinson Manalu Elvi Dewi Purnama Sari Simanjuntak Ester Agnesya Nainggolan Indra M Sarkis S