Psychometric properties of a novel instrument for evaluating indoor air pollution health literacy in adults

Jia Ling Wu, Yu Han Huang, Yi Chin Huang, Wen Hsuan Hou, Chien Cheng Jung, Pei Chen Lee, Ming Yeng Lin, Chung Yi Li

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This study aimed to develop and validate the psychometric properties of a novel instrument that measures Indoor Air Pollution Health Literacy (IAPHL). The qualitative phase was conducted to design questions based on the conceptual model of the European Health Literacy Survey Questionnaire. We developed a 38-item instrument covering 12 constructs, that is, four information competencies within three health domains to assess IAPHL. A cross-sectional online video survey of 647 adults aged 20 years and above in Taiwan was conducted. Various measures of validity and reliability coefficients were assessed to indicate the psychometric properties of the IAPHL instrument. The content validity indices for relevance, importance, and clarity of the 38 questions were 0.97, 0.96, and 0.89, respectively. The model fit indices obtained from the confirmatory factor analysis supported the acceptable structures of the theoretically hypothetical 12-factor model (standardized root mean square residual = 0.055; root mean square error of approximation = 0.065). Internal consistency for the instrument showed a Cronbach's alpha of 0.96. The IAPHL instrument developed in this study showed satisfactory validity and reliability and can be used in future fieldwork.

Original languageEnglish
Article numbere13155
JournalIndoor Air
Issue number11
Publication statusPublished - Nov 2022


  • environmental health literacy
  • health competency
  • indoor air pollution
  • instrument development
  • psychometric properties
  • Taiwan

ASJC Scopus subject areas

  • Environmental Engineering
  • Building and Construction
  • Public Health, Environmental and Occupational Health


Dive into the research topics of 'Psychometric properties of a novel instrument for evaluating indoor air pollution health literacy in adults'. Together they form a unique fingerprint.

Cite this