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The International Journal of the Royal Society of Thailand
Volume XV-2023

Figure S1 Contributions of ego characteristics (time since the first publication, average annual
publication number during the past 5 years, research area diversity, and proportion of review/
systematic review articles), alter characteristics (diversity of sub-regions of co-authors’ affiliations), and
co-authorship network characteristics (network size, edge density, number of communities, and
clustering coefficient) on the principal component analysis (PCA) Dimension 1 (A) and Dimension 2 (B),
and the PCA scree plot (C). Details of abbreviations in Panel A were shown in Table S1.

A Potential Use of Ego-centric Co-authorship Network Analysis for
18 Inspecting Research Misconduct: A Case Study of Thai Researchers