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In Reply We are thankful to Chua and colleagues for commenting on the methodology of our study “Effect of Protruding Ears on Visual Fixation Time and Perception of Personality,” in which we investigated the attention-drawing effect of protruding ears using an eye-tracking device and the effect of protruding ears on selected personality traits.
The chosen personality traits were derived from the validated Neuroticism-Extraversion-Openness Personality Inventory (NEO-PIR) questionnaire published by McCrea and John,1 representing the so-called big 5 personality traits. We added 4 more traits that have been used in previous research.2
Litschel R, Tasman A. Importance of Understanding the Validity and Reliability of Visual Analogue Scales for Rating of Personality—Reply. JAMA Facial Plast Surg. 2015;17(4):311-312. doi:10.1001/jamafacial.2015.0726