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Cultural intelligence (CQ) is rapidly gaining popularity as a construct that predicts and explains effectiveness and performance in cross-cultural settings, not only in the context of a multi-cultural workplace, but also in other domains of life. Thus, valid and reliable measurement of CQ is important for business, society and research. While dozens of CQ scales have been developed, they tend to suffer from some serious limitations. A number of important questions pertaining to measurement of CQ remain unanswered. The present paper reviews the limitations of existing instruments, points us the issues that must be addressed to advance our understanding of the phenomenon to the next level and provides directions for future research in this area.
Vas Taras (2020) studied this question.