Tesis

Uji Validitas dan Reliabilitas Occupational Fatigue Exhaustion Recovery (OFER15) Versi Bahasa Indonesia sebagai Instrument Penilaian Kelelahan Umum Akibat Kerja pada Industri Manufacture = Validity and Reliability of the Indonesian Version of the Occupational Fatigue Exhaustion Recovery (OFER15) Scale for Indonesian Workers in Manufacture Industry.

Latar Belakang : Occupational Fatigue Exhaustion Recovery (OFER) sebagai instrumen penilaian kelelahan pada pekerja selain bisa mendapatkan tingkat kelelahan kronis, kelelahan akut juga dapat menilai kecukupan intershift recovery dan banyak dipergunakan secara luas di berbagai negara, akan tetapi belum ada dalam versi Bahasa Indonesia. Penelitian ini bertujuan untuk mendapatkan OFER15 versi Bahasa Indonesia yang valid dan reliabel. Metode Penelitian : Adaptasi OFER15 versi aslinya menggunakan metode 10 langkah dari ISPOR (International Society for Pharmacoeconomics and Outcomes Research) diikuti dengan uji validitas butir dan faktor serta uji reliabilitas. Pengujian dilakukan terhadap 172 pekerja baik itu dengan sistem shift maupun nonshift pada Industri Manufacture di PT X di Jakarta. Hasil Penelitian : Hasil dari ISPOR pada penelitian ini terjadi beberapa penyesuaian bahasa dan idioms. Keseluruhan 15 butir OFER15 versi Bahasa Indonesia dinyatakan valid (r = 0.496-0.649). Hasil Analisis Faktor Eksploratori mengidentifikasi struktur tiga faktor yang signifikan yang memiliki kompatibilitas yang dapat diterima untuk model kuesioner OFER-15 asli. Nilai α Cronbach OFER15 versi Bahasa Indonesia adalah 0.82 pada Subskala Kelelahan Kronis , 0.88 pada Subskala Kelelahan Akut dan 0.82 pada Subskala Intershift Recovery. Didapatkan hasil tes-retest dengan nilai IntraClass Correlation > 0.8 pada setiap subskala. Hasil penelitian di PT X dari 172 pekerja didapatkan 91 orang mengalami kelelahan kronis, 33% nya kekurangan waktu pemulihan kerja, 68 orang mengalami kelelahan akut, 34% nya kekurangan waktu pemulihan kerja, dan 13 orang (8%) tidak mengalami kelelahan akibat kerja. Kesimpulan : OFER15 versi Bahasa Indonesia ini memiliki validitas, reliabilitas dan stabilitas internal baik, sebagai instrumen yang dapat dipergunakan untuk menilai kelelahan umum akibat kerja pada populasi pekerja di Indonesia.
Kata kunci: Fatigue; OFER15 Indonesian Version; Validity; Reliability.


Background : Occupational Fatigue Exhaustion Recovery (OFER) is an instrument for general fatigue assessment in workers, whether chronic fatigue, acute fatigue and adequacy of intershift recovery and has widely been used in many countries, however there hasn’t been Indonesian version. This research aims at obtaining a valid and reliable OFER15 Indonesian version Methods : Adaptation of the original version of OFER15 using the 10-step methods of ISPOR (International Society for Pharmacoeconomics and Outcomes Research) followed by a validity test of items and factors as well as a reliability test. The test was conducted toward 172 employees either in shift or non-shift systems in a Manufacturing Industry at PT X in Jakarta. Results : The result of ISPOR in this research, there were some adjustment of idioms in Indonesia Language. All of 15 items the OFER15 questionnaire Indonesian version were all valid (r = 0.496-0.649). The results of Exploratory Factors Analysis identified a significant three-factor structure that had an acceptable compatibility to the model of original OFER15 questionnaire.. The α Cronbach of OFER15 Indonesian version is 0.82 for the Chronic Fatigue Subscale, 0.88 for the Acute Fatigue Subscale and 0.82 for the Intershift Recovery Subscale. In the reliability test, the score of Intra-Class Correlation is > 0.8. The results of applying this instrument to 172 workers of this company, identified: 91 workers suffered chronic fatigue among them 33% had inadequate intershift recovery, 68 workers suffered acute fatigue among them 34% had inadequate intershift recovery and 13 workers (8%) did not experience fatigue due to work. Conclusion : The OFER15 Indonesian version is valid, reliabel and has good internal stability. This instrument can be used to assess general fatigue due to work among Indonesian workers.
Key words: Fatigue; OFER15 Indonesian Version; Validity; Reliability.