Tesis

Uji kesahihan dan keandalan Quality of Life in Short Stature Youth (QoLISSY) versi Bahasa Indonesia dalam menilai kualitas hidup anak dengan perawakan pendek = Validity and reliability test of the Indonesian version of Quality of Life in Short Stature Youth (QoLISSY) in assessing the quality of life of children with short stature.

Latar belakang dan Tujuan: Perawakan pendek berhubungan erat dengan gangguan kualitas hidup seorang anak serta orang tua ataupun pengasuhnya. Quality of Life in Short Stature Youth (QoLISSY) merupakan alat bantu penilaian kualitas hidup pada anak dengan perawakan pendek. Penelitian ini bertujuan untuk mengadaptasi instrumen QoLISSY ke dalam Bahasa Indonesia dan membuktikan validitas serta reliabilitas instrumen tersebut. Metode: Penelitian ini menggunakan desain studi potong lintang yang merekrut subyek anak yang bersekolah di SMAN 68 dengan perawakan pendek. Penerjemahan instrumen dilakukan oleh dua pasang penerjemah bersertifikat. Validitas konkuren dinilai menggunakan uji korelasi Spearman dengan membandingkan masing-masing pertanyaan instrumen QoLISSY versi Bahasa Indonesia, sedangkan penilaian reliabilitas dilakukan dengan melihat nilai Cronbach’s alpha. Hasil: Sebanyak 448 subyek anak berhasil diukur tinggi badannya, 72 (16,1%) di antaranya berperawakan pendek. Dari 72 subyek berperawakan pendek, 33 subyek bersedia mengisi kuesioner QoLISSY. Hanya 2 subyek yang melakukan pengobatan hormon pertumbuhan, oleh karena itu uji validitas dan realibilitas dilakukan pada 36 dari 50 butir pernyataan. Uji validitas menunjukkan 6 dari 36 butir pernyataan memiliki korelasi lemah, namun korelasi antarpertanyaannya baik. Nilai Cronbach’s alpha instrument ini adalah 0,930, yang menunjukkan konsistensi internal yang sangat baik. Kesimpulan: Instrumen QoLISSY versi Bahasa Indonesia memiliki validitas dan reliabilitas yang baik sebagai alat penilaian kualitas hidup anak dengan perawakan pendek.
Kata kunci: validitas, reliabilitas, kualitas hidup, anak, perawakan pendek


Background and Objectives: Short stature is closely related to impaired quality of life for a child and their parents or caregivers. The Quality of Life in Short Stature Youth (QoLISSY) is an assessment tool for evaluating the quality of life in children with short stature. This study aims to adapt the QoLISSY instrument into Indonesian and to prove its validity and reliability. Methods: This study used a cross-sectional design and recruited children with short stature from SMAN 68. The instrument translation was performed by two pairs of certified translators. Concurrent validity was assessed using the Spearman correlation test by comparing each question of the Indonesian version of the QoLISSY instrument, while reliability was assessed by looking at Cronbach’s alpha values. Results: A total of 448 children were measured for height, 72 (16.1%) of whom were short. Out of the 72 short-statured children, 33 subjects were willing to complete the QoLISSY questionnaire. Only 2 subjects were undergoing growth hormone therapy, thus validity and reliability tests were performed on 36 out of 50 questionnaire items. Validity tests showed that 6 out of 36 items had weak correlations, but the inter-item correlations were good. The Cronbach’s alpha value of this instrument was 0.930, indicating excellent internal consistency. Conclusion: The Indonesian version of the QoLISSY instrument has good validity and reliability as a tool for assessing the quality of life of children with short stature.
Keywords: validity, reliability, quality of life, children, short stature