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Normative statistics are provided for the UCLA Loneliness Scale based on the results of a sample of 978 adult subjects collected during a general population health survey. Factor analysis of the data revealed that the scale had a two factor structure; positively worded items loaded on one factor and negatively worded items on the other. Results from the factor analysis were used to construct two equivalent 10-item short forms of the scale. Previous findings that the scale is highly reliable were confirmed.
Knight et al. (Tue,) studied this question.