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UJI VALIDITAS DAN RELIABILITAS INSTRUMEN SHORT FORM-36 (SF-36) ITEM HEALTH SURVEY VERSI BAHASA INDONESIA PADA PASIEN PASCA SERANGAN JANTUNG DI KOTA MATARAM

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ABSTRAK
UJI VALIDITAS DAN RELIABILITAS INSTRUMEN SHORT FORM-36
(SF-36) ITEM HEALTH SURVEY VERSI BAHASA INDONESIA PADA
PASIEN PASCA SERANGAN JANTUNG DI KOTA MATARAM
I Wayan Manacika Surya Dharma, Dian Puspita Sari, Basuki Rahmat
Latar Belakang: Pasca mengalami infark miokard terjadi beberapa perubahan
fisik, emosi dan sosial yang dapat mempengaruhi kualitas hidup pasien. Instrumen
SF-36 Item Health Survey versi Bahasa Indonesia digunakan dalam beberapa studi
yang berkaitan dengan kasus penyakit kronis. Akan tetapi, instrumen ini belum
pernah diuji validitas dan reliabilitasnya pada populasi pasien pasca serangan
jantung. Sehingga, untuk mengetahui kualitas hidup pasien pasca serangan
jantung, validitas construct dan reliabilitas instrumen ini perlu ditelaah. Penelitian
ini bertujuan untuk mengetahui validitas construct dan reliabilitas instrumen SF-
36 Item Health Survey versi Bahasa Indonesia pada pasien pasca serangan jantung
di Kota Mataram.
Metode: Desain penelitian ini merupakan penelitian studi observasional, dengan
pendekatan cross-sectional. Pengambilan sampel dilakukan dengan teknik
consecutive sampling di RSUD Kota Mataram pada bulan November 2019. Uji
validitas konstruk dan uji reliabilitas instrumen SF-36 berbahasa Indonesia
dilakukan melalui Confirmatory Factor Analysis (CFA) Third-Order Contruct
Reflective, menggunakan program Analisis SEM-PLS dengan WarpPLS 6.0. Ada
dua alternatif model yang diujikan. Kedua model terdiri atas delapan domain first
order factors dengan komponen penyusun yang sama, namun berbeda pada
second order factorsnya. Alternatif 1 terdiri atas dua second order factors
(Physical Component Summary dan Mental Component Summary), sementara
alternatif 2 terdiri atas tiga domain second order factors (Physical Component
Summary, Mental Component Summary dan Well Being). Third order factors
untuk kedua alternatif ini adalah sama, yaitu Health Status.
Hasil: Pada first order factors analysis, didapatkan 12 dari 35 item memiliki
indicator reliability yang rendah. Kedelapan domain memiliki internal
consistency reliability yang baik. Enam dari delapan domain memiliki convergent
validity yang baik dan hampir kedelapan domain memiliki discriminant validity
yang baik. Hasil second order factors analysis menunjukkan bahwa lima dari
delapan domain memiliki indicator reliability yang baik. Ketiga domain memiliki
internal consistency reliability yang baik. Dua dari tiga domain memiliki
convergent validity yang baik dan ketiga domain memiliki discriminant validity
yang baik. Pada third order factors analysis, menunjukkan bahwa semua domain
memiliki indicator reliability, internal consistency reliability dan convergent
validity yang baik.viii
Kesimpulan: Sebanyak 12 dari 35 item adalah tidak reliabel. Alternatif model
yang memiliki delapan domain first order dan tiga domain second order lebih
representatif untuk mewakili struktur dari SF-36. Studi selanjutnya, perlu
menyesuaikan beberapa butir pernyataan dengan konteks kegiatan atau aktivitas
fisik di Indonesia atau lebih khusus pada konteks daerah dan merekrut subyek dari
setting yang bervariasi.
Kata Kunci: validitas, reliabilitas, CFA dan WarpPLSix
ABSTRACT
VALIDITY AND RELIABILITY TEST OF THE SHORT FORM-36 (SF-36)
ITEM HEALTH SURVEY IN INDONESIAN VERSION OF POST-HEART
ATTACK PATIENTS IN MATARAM CITY
I Wayan Manacika Surya Dharma, Dian Puspita Sari, Basuki Rahmat
Background: Post myocardial infarction (MI), there are several physical,
emotional and social changes that can affect the patient's quality of life. The
Indonesian version of the SF-36 Item Health Survey instrument was used to
measure quality of life in several studies related to chronic diseases. However,
this instrument has not been tested for its validity and reliability in the post-MI
population. Thus, to determine the quality of life of post-MI patients, the construct
validity and reliability of this instrument need to be examined. This study aimed to
assess the construct validity and reliability of the Indonesian version of the SF-36
Item Health Survey instrument in post-heart attack patients in Mataram City.
Method: This was a cross-sectional study. The consecutive sampling technique
was employed to recruit the study subjects at a public hospital in Kota Mataram
in November 2019. Assessment of construct validity and reliability of the
Indonesian version of SF-36 was carried out through Confirmatory Factor
Analysis (CFA) Third-Order Contruct Reflective, using the SEM-PLS Analysis
program with WarpPLS 6.0. There are two alternative models being tested. Both
models consist of eight domains first order factors with the same constituent
components, but differ in the second order factors. Alternative 1 consists of two
second order factors (Physical Component Summary and Mental Component
Summary), while alternative 2 consists of three domains of second order factors
(Physical Component Summary, Mental Component Summary and Well Being).
The third order factors for these two alternatives were the same, namely Health
Status.
Result: In the first order factor analysis, 12 of the 35 items showed low reliability
indicator. The eight domains had good internal consistency reliability. Six of the
eight domains had good convergent validity and almost eight domains had good
discriminant validity. The results of the second order analysis showed that five of
the eight domains have a good indicator of reliability. All three domains had good
internal consistency reliability. Two of the three domains had good convergent
validity and the three domains have good discriminant validity. In the third order
factor analysis, it was found that all domains had good indicators of reliability,
internal consistency reliability and convergent validity.
Conclusion: A total of 12 of the 35 items were not reliable. The alternative model
with eight first order domains and three second order domains was more
representative of the structure of the SF-36 compared to the other alternativex
model. Future studies can improve the validity of this questionnaire by adapting
items with low reliability in the context of activities or physical activities relevant
to Indonesia or more specifically in the regional context and by recruiting
subjects from a more various settings.
Keywords: validity, reliability, CFA dan WarpPLS

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Ketersediaan

Informasi Detail

Judul Seri

-

No. Panggil

837

Penerbit

Mataram : FK Universitas Mataram., 2021

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

KTI PSPD

Info Detail Spesifik

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Pernyataan Tanggungjawab

-

Versi lain/terkait

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