Confirmatory factor analysis of the social interest index

Gary K. Leak

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Social interest was Alfred Adler's most important personality trait, and it reflects one's genuine concern for the welfare of all individuals. Several measures of social interest are available, and the Social Interest Index (SII) is one of the most popular in current use. This study is the first to report the results of a confirmatory factor analysis of the SII. Using college students, three models were tested in an effort to find support for the factorial validity of this scale. All analyses showed a poor fit between the theoretical model and scale items. The results paint a fairly negative picture of the factor structure of this important scale.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalSAGE Open
Issue number3
StatePublished - Oct 2011

All Science Journal Classification (ASJC) codes

  • Arts and Humanities(all)
  • Social Sciences(all)


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