Most Common Grammar Mistakes in Professional Writing

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1. 19 July 2026 · corrected by Selen Ikbal Uslu

   The article claims the Kreiner et al. (2002) study found that resumes with grammatical errors were rated lower on 'perceived competence and hireability.' The real study (Kreiner, Schnakenberg, Green, ; The reference list attributes a peer-reviewed journal article titled 'The Impact of Grammar on Professional Credibility' to 'Vappingo' in the Journal of Business and Technical Communication (2019), 33

   Before

   A 2018 study by Kreiner and colleagues found that resumes containing grammatical errors were rated significantly lower on perceived competence and hireability, even when the content was identical to error-free versions. The errors did not change what the candidate had accomplished; they changed how the reader perceived the candidate's attention to detail and professionalism. [...] <li><p>Vappingo. (2019). &quot;The Impact of Grammar on Professional Credibility.&quot; <em>Journal of Business and Technical Communication</em>, 33(2), pp. 148-172. DOI: 10.1177/1050651918816361.</p> </li>

   After

   A study by Kreiner and colleagues (2002) found that spelling errors in a short essay lowered readers' ratings of the writer's intellectual and writing ability, even when the underlying content was unchanged. The errors did not change what the writer had actually said; they changed how the reader perceived the writer's attention to detail and competence. [...] <li><p>Vappingo. &quot;The Impact of Grammar and Spelling on Business Credibility.&quot; Vappingo Word Blog.</p> </li>

   Why: The article claims the Kreiner et al. (2002) study found that resumes with grammatical errors were rated lower on 'perceived competence and hireability.' The real study (Kreiner, Schnakenberg, Green, ; The reference list attributes a peer-reviewed journal article titled 'The Impact of Grammar on Professional Credibility' to 'Vappingo' in the Journal of Business and Technical Communication (2019), 33

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