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Table 2 Summary of symbols and abbreviations used in text and figures

From: Concept networks of students’ knowledge of relationships between physics concepts: finding key concepts and their epistemic support

Symbol/Abbreviation Symbol/Abbreviation
W Weighted adjacency matrix D IN Strength, in-coming links
w ij Element ij of matrix W D OUT Strength, out-going links
a ij Element ij of unweighted adjacency matrix G IN Communicability, in-coming links
β Epistemic weight parameter G OUT Communicability, out-going links
\(\phantom {\dot {i}\!}S_{g,g^{\prime }}\) Similarity of networks g and g COLL Collated network
Z Z-scores AVER Averages