Linguistic Validation Of Knowledge, Attitudes And Practice Of Zika Virus Disease Questionnaire Among The Malaysian General Public Using Rasch Model: A Cross-Sectional Study

• Published in: Value in health Vol. 20; no. 9; pp. A759 - A760
• Main Authors: Ahmad, S, Wong, IX, Ahmad Mazlan, NA, Ismail, NE
• Format: Journal Article
• Language: English
• Published: Lawrenceville Elsevier Science Ltd 01.10.2017
• Subjects: Attitudes; Clinical outcomes; Cognitive ability; Cross-sectional studies; Debriefing; Dengue fever; Experts; General public; Harmonization; Infectious diseases; Quantitative psychology; Questionnaires; Rasch model; Reinforcement; Reliability; Sociodemographics; Specification; Translation; Validity; Zika virus; Malaysia
• ISSN: 1098-3015; 1524-4733
• DOI: 10.1016/j.jval.2017.08.2147

OBJECTIVES: Recently, Malaysia is bracing for more Zika virus disease (ZVD) cases. The frequent increase in number of ZVD cases could further stretch a health system struggling with dengue. The main objective of this study was to adapt, translate, and validate the knowledge, attitudes and practice (KAP) of ZVD questionnaire among the Malaysian general public. METHODS: In this cross-sectional study, KAP questionnaire for ZVD was composed considering the available resource pack of the World Health Organization (WHO). The 37-item questionnaire consisted of four parts: socio-demographic data (n=6), knowledge (n=7), attitudes (n=15), and practice (n=9) of ZVD. The finalized KAP questionnaire for ZVD was translated according to already established international translation guidelines. The overall translation process involved forward translation, backward translation, harmonization, cognitive debriefing and proof reading. The content validation was done by three experienced questionnaire validation experts with the clinical background. After qualitative validation, questionnaires were distributed among 120 subjects. The data were extracted from the completed questionnaires and analysed using Bond and Fox Software for Rasch analyses. RESULTS: The item reliability and person reliability values were 0.96 and 0-60, respectively. The output tables of item construct showed that values for infit and outfit ZSTD (±2), infit and outfit MNSQ (0.6 to 1.4) and PTMEA correlation (0.3 to 0.6) were within the acceptable range as specified by the Rasch Model. Hence, the newly devised translated questionnaire statisfy the specification of the Rasch Model for reliability and construct validity. CONCLUSIONS: The Malaysian version of KAP of ZVD questionnaire proved to be a highly reliable and valid tool to assess the level of KAP among Malaysians. As questionnaire development is an iterative process, so this study suggests to validate KAP of ZVD questionnaire in other states of Malaysia for further reinforcement of good psychometric properties.