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All Journal Al Ishlah Jurnal Pendidikan Al-Zayn: Jurnal Ilmu Sosial & Hukum
Yeheskial Nggandung
Universitas Nusa Cendana
Religion Humanities Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Mathematics Other

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Enhancing Senior High School Students' Critical Thinking in Economics Learning Through the Project-Based Learning Model Selvita Eka Eviana Purba; Ari Data; Emirensiana Adha; Retno Hernawati; Erika Simanungkalit; Yeheskial Nggandung
AL-ISHLAH: Jurnal Pendidikan Vol 17, No 4 (2025): DECEMBER 2025
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v17i4.8505

Abstract

Critical thinking is essential in economics education, yet many senior high school students are still taught through memorization-focused methods, limiting the development of higher-order thinking skills. Project-Based Learning (PjBL) offers a potential alternative by engaging students in real-world, inquiry-based tasks. This quasi-experimental study employed a nonequivalent control group pretest–posttest design involving 71 senior high school students. The experimental group received instruction using the PjBL model, while the control group followed conventional teaching. Data were collected using a validated 20-item multiple-choice critical thinking test aligned with Bloom’s revised taxonomy (C4–C6). ANCOVA was used to analyze posttest differences, with pretest scores as covariates. Hedges’ g and normalized gain (N-gain) were calculated to assess effect magnitude and improvement. ANCOVA results revealed a statistically significant difference in posttest scores favoring the PjBL group (F = 5.686, p = .020), with a medium effect size (Partial Eta Squared = .078). The experimental group outperformed the control group with a mean posttest score of 67.86 versus 60.00. Hedges’ g was 0.522, and N-gain for the PjBL group (M = 0.558) exceeded that of the control group (M = 0.435). The findings suggest that PjBL is effective in enhancing students’ critical thinking in economics, particularly when projects are grounded in real-life contexts such as local inflation data. PjBL implementation requires structured planning, authentic tasks, and clear assessment criteria.
The Effect of Brand Image on Consumer Satisfaction with Evelio Brand Bottled Water Maria K.A Rinda; Yeheskial Nggandung; Fernando Saragih
Al-Zayn: Jurnal Ilmu Sosial, Hukum & Politik Vol 4 No 3 (2026): 2026
Publisher : Yayasan pendidikan dzurriyatul Quran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61104/alz.v4i3.5521

Abstract

Distribusi berpengaruh terhadap kepuasan konsumen terhadap air minum dalam kemasan (AMDK) merek Evelio di kalangan mahasiswa Program Studi Pendidikan Ekonomi Universitas Nusa Cendana. Persaingan yang ketat dalam pasar AMDK serta tren penurunan penjualan Evelio dari tahun 2019 hingga 2023 yang mengindikasikan rendahnya kepuasan pelanggan menjadi dasar penelitian ini. Penelitian ini berfokus pada empat faktor, yaitu kualitas produk, citra merek, harga, dan distribusi, karena mahasiswa sebagai konsumen kritis cenderung mempertimbangkan aspek-aspek tersebut dalam pengambilan keputusan pembelian. Penelitian kuantitatif ini menggunakan teknik survei dan analisis regresi linear berganda untuk menguji pengaruh masing-masing variabel. Sebanyak 219 responden dipilih secara acak sebagai sampel penelitian. Hasil penelitian menunjukkan bahwa kualitas produk dan citra merek berpengaruh positif terhadap kepuasan konsumen, di mana citra merek yang kuat dan kualitas produk yang tinggi mampu meningkatkan pengalaman berbelanja mahasiswa. Harga yang dianggap sesuai dengan manfaat serta saluran distribusi yang mudah diakses juga memberikan pengaruh signifikan terhadap tingkat kepuasan. Secara simultan, keempat faktor tersebut berpengaruh positif dan signifikan terhadap kepuasan pelanggan Evelio. Temuan ini menunjukkan bahwa upaya peningkatan kualitas produk, penguatan citra merek, penetapan harga yang kompetitif, serta penyediaan distribusi yang efektif dapat meningkatkan kepuasan dan loyalitas pelanggan. Penelitian ini diharapkan dapat menjadi referensi akademik dalam kajian perilaku konsumen dan pemasaran, serta sebagai bahan evaluasi bagi perusahaan Evelio.
Co-Authors andri paulus loe Ari Data Emirensiana Adha Erika Feronika Br Simanungkalit Fernando Saragih Filbertus Nejang Lingkang L. Massa Maria K.A Rinda Maria Larasti Rae Retno Hernawati Selvita Eka Eviana Purba