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. 2023 Feb 15;19(1):2176083. doi: 10.1080/21645515.2023.2176083

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© 2023 The Author(s). Published with license by Taylor & Francis Group, LLC.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.

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Figure 5. — VL factor loading, using PCA extraction method, in populations from Itay (Biasio et al., 2020), Japan (Takahashi et al. 2022), Croatia (Gusar et al. 2021), and Thailand (Maneesriwongul et al. 2002, unpublished data kindly provided by the Author).

Items measuring functional VL (# 1-4) load on the second factor, while interactive-critical items (# 5-12) load more on the first factor. Values reported in Gusar’s publication have been reversed to consent comparison. Refer to Annex 2 for Item number identification.