Finding 01
Do spelling mistakes actually change the decision?
Yes—when they pile up. In a 2023 experiment, resumes with five spelling errors received an 18.5 percentage-point lower interview probability than error-free versions.
What this changes in your report
We flag visible errors because they can cast doubt on otherwise strong work—not because one typo predicts job performance.
Interview probability
−18.5pp
Five spelling errors versus error-free resumes in the experiment.
Source
Sterkens et al., PLOS ONE (2023)
Factorial survey experiment with 445 genuine recruiters evaluating resumes across eight occupations.