Exploratory factor analysis
The questionnaire included 27 product items. In order to
group the product items, an exploratory factor analysis was
used (e.g. Brakus et al., 2009). The Kaiser Meyer Olkin
value was 0.901 and is well over the required minimum
(Hutcheson and Sofroniou, 1999: 224-225). The individual
item Kaiser Meyer Olkin values for all variables are in
the range of 0.8 to 0.9. Bartlett’s test is also highly significant
(p < 0.001). Therefore, a factor analysis is appropriate.
We conducted a factor analysis using a Varimax rotation.
Five factors were derived (Table 3). We included items that
had a loading of greater than 0.34. The Cronbach’s Alpha
measure of internal consistency and reliability of the factors
were satisfactory (Nunnally, 1978). Factors 1, 4 and 5 were