Therefore, we analyzed the reliability and validity of online surveys in investigating the perceptions (shine, red, and dark) and impressions (attractiveness, trustworthy, and so on) of facial photographs created from averaged faces with skin tones modified using computer graphics (CG). Then the statistical analysis of a larger volume of data may reduce errors and suggest significant difference in the stimuli. Although, the quality of visual stimuli is more difficult to control remotely, the methods might allow us to obtain a large amount of data. Online experimental methods are used in psychological studies investigating the perceptions and impressions of facial photographs, even without substantial evidence supporting their reliability and validity. 2Department of Psychology, Graduate School of Informatics, Nagoya University, Nagoya, Japan.1Shiseido Global Innovation Center, Yokohama-Shi, Japan.Naoyasu Hirao 1 *, Koyo Koizumi 1, Hanako Ikeda 1 and Hideki Ohira 2
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