Obtaining accurate information from markets is highly dependent on the use of valid and
reliable scales. This study is intended to assess validity and reliability of the CETSCALE, a measure
of consumers’ ethnocentric tendencies, in the context of Iran. Data collected from 278 university
students were used to examine the unidimensionality, internal consistency, discriminant validity, and
nomological validity of the CETSCALE. The results confirmed the unidimensionality postulate of the
scale; however, due to poor model fit, a more parsimonious scale was developed by removing 7 items.
Reliability and discriminant validity of the CETSCALE were strongly supported by the data, although
the support for nomological validity was not very strong.