LAUSR

The current study aimed at testing and developing alternative short versions of autism spectrum quotient (AQ‐10) (adult [self‐report], adult [parent‐report], adolescent, and child versions) for use in Hong Kong. First, the various versions of AQ‐10 developed in the United Kingdom (the AQ‐10‐UK) were applied to Hong Kong Chinese samples and demonstrated satisfactory discriminative power (AUCs 0.77–0.94). Second, the Hong Kong Chinese versions of AQ‐10 (AQ‐10‐HK) were developed, using the same methodology as in the original UK study. There were some changes in the choice of items and cut‐offs. The AQ‐10‐HK demonstrated slightly greater discriminative power (AUCs 0.88–0.97) to that of the AQ‐10‐UK, but the differences in AUCs were not statistically significant. Compared to the corresponding full‐length versions, both the UK and HK short forms did not seem to lose any significant discriminative power. Yet, the various versions of AQ, be they the full‐length or AQ‐10, appeared to consistently exhibit slightly smaller AUCs with the Hong Kong Chinese samples than with the UK samples. So, this study found both cross‐cultural similarities and differences. The AQ‐10‐HK was recommended for local practice to maximize the advantage gained. Yet, for international multi‐site research collaboration, involving the UK and HK, the original AQ‐10‐UK can be used for direct comparison of data.