Development and construct validation of the Korean Competence Scale (KSC)

Chang Wan Han, Yuki Yajima, Eun Joo Lee, Chun Man Park, Makiko Meguro, Kazuo Nakajima, Masahiro Kohzuki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A comprehensive Korean competence scale (KCS) designed for Korean older adults, was developed and its construct validity evaluated. KCS assesses their higher levels of functional competence than activities of daily livings (ADL), necessary for independence in the home and community. The internal structure of the scale was tested using an exploratory and confirmatory factor analysis with two elderly Korean sample groups. As expected, the exploratory factor analysis result demonstrated a three-factor solution comprised of the following three domains: instrumental self-maintenance, intellectual activity, and social role. The confirmatory factor analysis results showed that an acceptable solution could be estimated for a second-order factor model comprised of these factors. These findings provide evidence for the construct validity of the instrument and have implications for future research on factorial invariance.

Original languageEnglish
Pages (from-to)331-337
Number of pages7
JournalTohoku Journal of Experimental Medicine
Issue number4
Publication statusPublished - 2004 Aug


  • Construct validity
  • Factor analysis
  • Korean competence scale
  • Older community resident

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


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