Harizahayu
Politeknik Negeri Medan

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THE VALIDITY AND RELIABILITY TESTING OF PUBLIC SPEAKING SKILLS QUESTIONNAIRE FOR IT STUDENTS USING SPSS Harizahayu; Helvira Audrey Dwisastri; Friska Purba
Journal Computer and Technology Vol. 3 No. 2 (2025): Desember 2025
Publisher : Ninety Media Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69916/comtechno.v3i2.378

Abstract

This study aims to measure the level of relevance of public speaking knowledege among IT students in North Sumatra. The validity test was conducted to determine whether the instruments or questions in the questionnaire truly measure what they are intended to measure. The reliability test evaluates the extent to which the questionnaire can be trusted and relied upon. The research method aims to prepare a standardized questionnaire ready for use in studying students’ satisfaction with online lectures. The sample for this study consisted of 512 students who completed a Google Form. The validity test results for 77 questions indicated that 60 questions were valud with a correlation value greater than 0.25, while 17 questions were deemed invalid due to a correlation value below 0.25. The reliability test shows the Cronbach’s Alpha value > 0.60, so the instrument tested can be declared reliable or consistent.
The Community Partnership Service Utilization of Social Media for Promoting Binjai Batik Products at UMKM Tan Collection, Binjai District, Binjai City, North Sumatra Yuyun Yusnida Lase; Andam Lukcyhasnita; Santi Prayudani; Harizahayu; Friendly
GANDRUNG: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 1 (2026): GANDRUNG: Jurnal Pengabdian Kepada Masyarakat
Publisher : Fakultas Olahraga dan Kesehatan, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/gandrung.v7i1.6332

Abstract

The creative economy serves as a vital platform for promoting and preserving local cultural heritage. UMKM Tan Collection, a creative enterprise producing Binjai's signature "rambutan batik," faces significant marketing challenges as the sole producer of handcrafted rambutan batik in the city. Digital visibility remains particularly low, with minimal online information and motif documentation compared to other batik varieties, resulting in unstable market demand. This community service program aims to enhance the digital promotion and sales of rambutan batik through social media content creation training. The methodology includes problem identification, CapCut video editing workshops, content development assistance, and implementation evaluation. Results demonstrate improved digital literacy among artisans, creation of engaging social media content, and enhanced online brand visibility. The program successfully established a sustainable digital marketing framework, enabling continuous product promotion and cultural preservation through digital platforms.