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All Journal Jurnal Tematik Journal of Innovation Research and Knowledge
edward sinaga
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Humanities Economics, Econometrics & Finance Education Health Professions Law, Crime, Criminology & Criminal Justice Social Sciences

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PENGEMBANGAN BUKU AJAR IPS BERBASIS PENINGGALAN-PENINGGALAN SEJARAH LOKAL UNTUK SISWA KELAS IV SEKOLAH DASAR DI KECAMATAN RAYA KABUPATEN SIMALUNGUN edward sinaga
JURNAL TEMATIK Vol 7, No 1 (2017): Jurnal Tematik
Publisher : JURNAL TEMATIK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jt.v6i4.8545

Abstract

This study aimed to produce IPS theacing book of Simalungun local historical.The Research type was Research and Development in grade IV SD Negeri 091317 Pamatang Raya, SD Negeri 091341 Bintang Mariah, SD Negeri 091332 Raya Bayu, SD Negeri 095160 Sihubu. This research referred to research and development model of Sugiyono which in its implementation the research and test done to develop existing product. The sample in this research and development  amounting to 102 students. The theacing book developed before being tested has met the eligibility criteria. The validation results of material expert (94.44% = excellent), linguist (95.31% = excellent), presentation expert (98.86% = excellent). The validation result of  the figures (95%; 92.5%; 97.5% = excellent), and the validation results of practitioners as implementers of learning at the research places (92.5%; 95%; 90%; 92.5%; 97.5% = very good). Effective theacing book can improve students  learning outcomes, based on pre-test and post-test result. The experiments conducted resulted in and increase in student learning outcomes and 90 students meeting the minimum mastery standard (KKM) or 88.24% completing the learning. The assessment of students learning outcomes based on pre-test and post-test was analyzed by using Gain. Based on the date, the average Gain score was 0.7 in high criteria.
PENGARUH KOMUNIKASI KERJA DAN STRES KERJA TERHADAP KINERJA KARYAWAN PADA PT SMOE INDONESIA Edward Sinaga; Daris Purba
Journal of Innovation Research and Knowledge Vol. 5 No. 9 (2026): Februari 2026
Publisher : Bajang Institute

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Abstract

PT SMOE Indonesia menghadapi tantangan fluktuasi kinerja karyawan yang diduga dipengaruhi oleh dinamika komunikasi dan tingkat stres di lingkungan kerja industri berat. Penelitian ini bertujuan untuk menganalisis pengaruh komunikasi kerja dan stres kerja terhadap kinerja karyawan, baik secara parsial maupun simultan. Menggunakan pendekatan kuantitatif kausal, data dikumpulkan melalui penyebaran kuesioner kepada 100 responden yang dipilih menggunakan teknik simple random sampling, kemudian dianalisis menggunakan regresi linear berganda dengan bantuan SPSS versi 25. Hasil penelitian menunjukkan bahwa komunikasi kerja berpengaruh positif dan signifikan terhadap kinerja karyawan, sedangkan stres kerja berpengaruh negatif dan signifikan. Secara simultan, kedua variabel tersebut berpengaruh signifikan dengan kontribusi sebesar 42,3% terhadap variabilitas kinerja karyawan. Disimpulkan bahwa untuk mengoptimalkan kinerja, perusahaan perlu memprioritaskan perbaikan saluran komunikasi internal yang efektif sekaligus menerapkan manajemen stres yang strategis guna meminimalisir tekanan kerja karyawan.
Co-Authors Daris Purba