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All Journal Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) ARZUSIN: Jurnal Manajemen dan Pendidikan Dasar
Alfiatun Nikmah
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Religion Computer Science & IT Decision Sciences, Operations Research & Management Education Social Sciences

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Efektivitas Discovery Learning untuk Meningkatkan Kemampuan Berpikir Kritis dan Penguasaan Konsep Asam Basa Arrhenius Alfiatun Nikmah; Ratu Betta Rudibyani; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 7, No 2 (2018): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (668.682 KB)

Abstract

The purpose of this research was to describe the effectiveness of discovery learning to improve critical thinking ability and concept mastery to Arrhenius’ acid base. This research used quasi eksperiment method with pretest – posttest non equivalent control group design. Populatian in this study was all students of SMA N 13 Bandar Lampung. Sample was collected through cluster random sampling, it was obtained XI IPA 1 as eksperiment and XI IPA 6 as control. Effectiveness was evidenced by n-Gain value used t-test, supported by teacher's ability and effect size. The results showed that critical thinking ability and concept mastery of students (n-Gain) had medium criteria, teacher's ability had very high criteria and effect size had large criteria. Based on this result, discovery learning is effective to improve critical thinking ability and concept mastery to Arrhenius’ acid base.Penelitian ini bertujuan untuk mendeskripsikan efektivitas model discovery learning untuk meningkatkan kemampuan berpikir kritis dan penguasaan konsep siswa pada materi asam basa Arrhenius. Penelitian ini menggunakan metode quasi eksperiment dengan desain pretest – posttest non equivalent control group. Populasi penelitian ini adalah siswa kelas XI IPA SMA N 13 Bandar Lampung. Pengambilan sampel menggunakan cluster random sampling, diperoleh kelas XI IPA 1 sebagai kelas eksperimen dan XI IPA 6 sebagai kelas kontrol. Keefektivan dibuktikan melalui nilai n-Gain menggunakan uji t serta didukung oleh kemampuan guru dan uji ukuran pengaruh. Hasil penelitian diperoleh bahwa keterampilan berpikir kritis dan penguasaan konsep siswa (n-Gain) dengan kriteria sedang, kemampuan guru yang sangat tinggi, dan ukuran pengaruh yang besar. Berdasarkan hasil tersebut, model discovery learning efektif untuk meningkatkan kemampuan berpikir kritis dan penguasaan konsep siswa pada materi asam basa Arrhenius.Kata kunci: discovery learning, kemampuan berpikir kritis, penguasaan konsep, asam basa Arrhenius
Pengaruh Influencer dan Fitur Marketplace terhadap Purchase Behavior dengan Purchase Intention sebagai Variabel Intervening pada TikTok Shop Alfiatun Nikmah; Alifah Ratnawati
ARZUSIN Vol 6 No 1 (2026): FEBRUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/arzusin.v6i1.8828

Abstract

The growth of social media–based e-commerce has driven changes in consumer purchasing behavior, particularly through TikTok Shop, which integrates entertainment content, influencers, and marketplace features. However, the high number of users does not always correspond to actual purchasing behavior, creating a gap between purchase intention and purchase behavior. This study aimed to analyze the influence of influencers and marketplace features on purchase behavior, with purchase intention as an intervening variable among TikTok Shop users. A quantitative method with an explanatory research approach was employed, involving 96 respondents selected through purposive sampling based on the criterion of having made at least three purchases via TikTok Shop. Data were collected using an online questionnaire and analyzed using Partial Least Squares–Structural Equation Modeling (PLS-SEM) with SmartPLS. The results showed that influencers and marketplace features had a positive and significant effect on purchase intention. In addition, influencers, marketplace features, and purchase intention had a positive and significant effect on purchase behavior, and purchase intention functioned as an intervening variable mediating the influence of influencers and marketplace features on purchase behavior. These findings confirm that increased consumer purchase behavior on TikTok Shop is driven by the effectiveness of influencers and the utilization of marketplace features that can enhance purchase intention and convert it into actual purchases. The implications of this study provide recommendations for business practitioners to optimize digital marketing strategies through collaboration with influencers and the use of live streaming and online customer reviews to increase purchase conversion.
Co-Authors Alifah Ratnawati Ratu Betta Rudibyani Tasviri Efkar