Discussion
Study 2 provided further evidence for both the validity and the reliability of the
unifactorial Citizenship Performance scale. The unifactorial scale was strongly correlated
with the other two measures of Citizenship Performance and was also correlated with
other aspects of performance in a manner consistent with theoretical expectations,
further confirming the validity of the scale. When compared with the other Citizenship
Performance scales used in Study 2, it also had the best psychometric qualities having
demonstrated the best factor structure fit and the best convergent and divergent validity.
GENERAL DISCUSSION
This article described the development and validation of a unifactorial scale for
measuring Citizenship Performance. This scale appears to be the first unifactorial
Citizenship Performance scale to have been successfully tested with CFA using
contemporary criteria. The relationship of the unifactorial Citizenship Performance
scale with other variables was consistent with theoretical expectations as well as
previous empirical findings, providing both convergent and divergent validation. Finally,
although the unifactorial Citizenship Performance scale was shown to be highly
correlated with previously developed measures of Citizenship Performance, it had a
better internal structure and external validity than these other scales. Therefore, the
unifactorial Citizenship Performance scale appears to be a valid measure of the latent
Citizenship Performance construct.
One of the major justifications for the idea that Citizenship is a single latent construct
is the fact that most correlations with other variables do not vary between Citizenship