Skip to main content
communality

communality

9.4
The amount a variable shares with other variables in factor analysis
  • noun
  • /ˌkɒmjʊˈnælɪti/
  • Specialized
translation icon : comunalidad
  • One limitation of the current study can be found in the low communalities of several of the number sense subtests.
  • communalities of variables
  • communality values
  • low communality

Examples

  • When variables have low communalities, it means that the common factors explain little variance in the variables.

    Academic text (2010)
  • All 24 items had communalities of at least 0.30 and above.

    Academic text (2007)
  • Furthermore, the small communality values for the five-component solution were perhaps an indicator of measurement error (Thompson, 2004).

    Academic text (2005)
  • In the current study, estimation demonstrated lower internal consistency, which might have caused these subtests to have low communalities.

    Academic text (2010)
  • The factor pattern and factor structure coefficients are presented in Table 2, along with communalities (h) of the measured variables.

    Academic text (2007)
  • Pattern coefficients and communalities for the oblique (Promax) four-factor solution are presented in Table 3.

    Academic text (2006)
  • The communality of the variables indicates how much variance is shared among them in the analysis.

  • Researchers found that high communality values could enhance the model's explanatory power.

  • In factor analysis, high communalities suggest that the variables represent a common underlying factor.

Surface Forms

communality singular
communities plural

Morphology

communality = communal (semi-transparent) = communal + ity

Formally derived from 'communal' + '-ity', but the statistical meaning ('shared variance' in factor analysis) is domain-specific and not fully predictable by general learners.

Etymology

Communality in statistics keeps the root commun- meaning 'shared' and describes how much a variable's information is 'shared' with other variables or common factors. So a high communality means the variable largely 'shares' its behavior with the group.