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Table 4 Correlation between WQA, reading ease score and grade level with ranking using Spearman’s correlation coefficient (r s )

From: Generic medicines: an evaluation of the accuracy and accessibility of information available on the internet

Google domain n WQA Flesch reading ease score Flesch Kinkaid grade level
Spearman’s rs p-value Spearman’s rs p-value Spearman’s rs p-value
IE / .com 8 −0.49 0.220 −0.33 0.420 0.24 0.570
IE / .ie 10 0.06 0.866 −0.64* 0.048* 0.58 0.082
UK / .com 8 −0.38 0.352 −0.48 0.233 0.43 0.289
UK / .co.uk 9 −0.51 0.160 −0.58 0.112 0.44 0.232
US / .com 7 −0.67 0.097 −0.64 0.119 0.68 0.094
CA / .com 8 −0.38 0.352 −0.48 0.233 0.43 0.289
CA / .ca 5 −0.70 0.188 0.10 0.873 −0.30 0.624
AU / .com 8 −0.34 0.404 0.29 0.493 −0.38 0.352
AU / .com.au 10 −0.10 0.787 0.00 1.000 0.33 0.359
  1. *Statistically significant at 5% level of significance.