IDEAS home Printed from
   My bibliography  Save this article

Testing Construct Validity of Competency Indicators of Scientific Literacy in Junior Secondary Students


  • Jomtarak Chayada
  • Suwanjan Peerawut
  • Pupat Phadungchai

    (Faculty of Industrial Education and Technology, King Mongkut’s Institute of Technology Ladkrabang (KMITL))

  • Jomtarak Rangsan

    (Faculty of Science and Technology, Suan Dusit University)


This research aimed to check the construct validity of competency indicators of scientific literacy in junior secondary students. The steps for conducting the research included a sample of 392 persons, derived from stratified random sampling, from a population of 22,855. The instrument used in this research is a measurement tool with a reliability of 0.838. Statistical analysis includes confirmatory factor analysis, mean, standard deviation, and one-way analysis of variance. The study results found that scientific literacy indicators of junior secondary students had construct validity by taking into consideration Chi-square = 20.842, df = 17, p = 0.233 and X2/df = 1.226. which was less than 2, while RMSEA = 0.024, RMR = 0.07, which was near to 0, GFI = 0.987, AGFI = 0.972, CFI = 0.979.

Suggested Citation

  • Jomtarak Chayada & Suwanjan Peerawut & Pupat Phadungchai & Jomtarak Rangsan, 2019. "Testing Construct Validity of Competency Indicators of Scientific Literacy in Junior Secondary Students," Mediterranean Journal of Social Sciences, Sciendo, vol. 10(2), pages 81-92, March.
  • Handle: RePEc:vrs:mjsosc:v:10:y:2019:i:2:p:81-92:n:8

    Download full text from publisher

    File URL:
    Download Restriction: no


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:vrs:mjsosc:v:10:y:2019:i:2:p:81-92:n:8. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Peter Golla). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.