13 
"Alienated Tool" cluster, representing the qualities of 
familiar tools that are owned by someone else. The third 
cluster, with a mean score of 1.02, consisted of the 
remainder of the criteria and is not worth labelling, since 
it probably represents a ceiling effect of judgements of 
non-applicability more than it does meaningful relatonships. 
The data on exemplars of things not owned were collected as 
control for the judgements of owned things and are not 
directly relevant to the concept of ownership. 
The difference scores are the judgements of exemplars 
of owned things more or less corrected for the effects of 
extraneous recall criteria. Bear in mind that the value 
range is -3 to +3, with positive numbers representing 
ownership and negative numbers non-ownership. The 
dendrogram in Figure 3 displays four major clusters. The 
first, with a mean score of 2.63, was the — "Social 
Defensive" cluster identified in the cluster analysis of 
judgements of things owned. The second, with a mean score 
of 2.0, consisted of Familiarity, Utility, History, and 
Purchase. This might be labelled as the "Regular 
Acquisitions" cluster, since it represents the qualities of 
typical, utilitarian items, things that were purchased some 
rine ago and are familiar and used routinely. The third 
cluster, with a mean score of 1.25, consisted of Knowledge 
and Aesthetics. It might be labelled the "Appreciation"