7 
J 
similarly by the subjects. The interpretation of clusters 
is based on the assumption that criteria that are responded 
to similarly are, in fact, slightly different 
representations of larger or deeper criteria.’ Thus, cluster 
analysis is useful in compensating for potentially unsure 
and inadequate selections and expressions of criteria. In 
estimating the relative importance of each cluster to the 
concept of ownership, the contributions of the cluster 
members are weighted equally by simply averaging the median 
judgement scores. The dendrogram for each cluster will be 
interpreted in turn. 
In the cluster dendrogram for judgements of owned 
exemplars in Figure 1, four major clusters were present. A 
score of 1.00 means 'Does not apply', a score of 4.00 means 
‘Applies completely'. The first cluster, with a mean median 
judgement score of 3.79, consisted of ‘Possession, Assertion, 
and Territoriality. This might be labelled the "Social 
Defensive" cluster since it emphasizes the qualities of a 
defensive, boundary marking stance towards other people. 
This may be related to the concept of defensive space, that 
people are prepared to take defensive actions if they 
perceive their territory or personal space to be threatened 
(Newnan, | 1973; Brower, 1980). The second cluster, with a 
mean score of 3.49, consisted of Familiarity, Knowledge, 
Aesthetics, and Utility. It might be labelled the "Favored