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Table 4 Correlations between global impression of politeness, total score, and each criteria

From: Etiquette for medical students’ email communication with faculty members: a single-institution study

Variable   Subject Message body Sign-off Total Score
(Q1, Q2) (Q3–Q8) (Q9)
   Clarity and conciseness Subject name Salutation Self-identification Readability Honorifics Internet slang Closing remarks   
Global impression of politeness Correlation −0.083 −0.005 0.668 0.297 0.167 0.325 0.148 0.653 0.646 0.833
p-valuea) 0.258 0.943 <0.001 <0.001 0.016 <0.001 0.033 <0.001 <0.001 <0.001
Total score Correlation 0.197 0.185 0.650 0.441 0.159 0.275 0.325 0.481 0.703 n.a.
p-valuea) 0.007 0.013 <0.001 <0.001 0.022 <0.001 <0.001 <0.001 <0.001  
  1. a)Pearson correlation
  2. n.a. not available