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All Journal Rekursif: Jurnal Informatika Jurnal Pengukuran Psikologi dan Pendidikan Indonesia (JP3I) Medika Teknika : Jurnal Teknik Elektromedik Indonesia International Journal of Islamic Educational Psychology Journal of Sharia Accounting and Tax (JSAT Civilia: Jurnal Kajian Hukum dan Pendidikan Kewarganegaraan
Syahputra, Wahyu
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Religion Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Other

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A Meta-analysis of Coefficient Alpha for the Revised Life Orientation Test (LOT-R) Syahputra, Wahyu; Hayat, Bahrul
JP3I (Jurnal Pengukuran Psikologi dan Pendidikan Indonesia) Vol. 15 No. 1 (2026): JP3I
Publisher : FAKULTAS PSIKOLOGI UIN SYARIF HIDAYATULLAH JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jp3i.v15i1.43272

Abstract

The Revised Life Orientation Test (LOT-R) is one of the most popular instruments for measuring optimism. The authors conducted a meta-analysis, also known as a reliability Generalization study, to estimate the population Cronbach's Alpha for the LOT-R. This study also examined Alpha heterogeneity and identified factors that might influence it. Using a Random Effects Model, the estimated population Cronbach's Alpha based on 211 studies was found to be 0.768 (95% CI: 0.757, 0.778), indicating a good level of reliability. The heterogeneity analysis revealed an I² value of 95.84%, suggesting significant differences among the studies. These differences may stem from factors beyond just methodological variations or population samples. To understand the possible causes for this heterogeneity, a meta-regression analysis was performed, focusing on moderator variables including gender, age, study setting, study type, citation, and language. Among these moderator variables, only the language variable showed a significant impact on the variation in Cronbach's Alpha. In conclusion, the findings suggest that the LOT-R is a reliable instrument for measuring optimism. However, the study also reveals that linguistic factors may influence its reliability, potentially limiting the generalizability of findings across different language groups and in cross-cultural contexts. Therefore, researchers should consider language-related variations when interpreting LOT-R results. Future studies are encouraged to examine further how linguistic differences may affect the instrument's validity and to explore ways to optimize its use across diverse cultural settings.
Co-Authors Ali, Moondore Madalina Anna Armeini Rangkuti Aulia, Yulfa Bahrul Hayat, Bahrul Baydhowi, Baydhowi Dartiko, Fedryanto Devie Yundianto Endina Putri Purwandari Fathony, Ahmad Harahap, Rafli Ananda Khatami, Muhammad Mahfudhoh, Tiatil Maulana, Raffi Oktoeberza, Widhia KZ Pradana, Refki Jorgi Prayoga, Ridho Adji Rakim, Aditya Achmad Ridha, Irfan Safitri, Reska Saiful Falah, Saiful Salim, Syarla Anazira Putri Sari, Renti Epana Syahrul R, Syahrul Widhiastuti, Ika Wirani, Salsabila