Raters & Stimuli – demographic data for the ISHE 2026 conference contribution

Stimuli: We used 106 women (mean age ± SD: 23.09 ± 4.12, range: 19–39), and 89 men (mean age ± SD: 23.38 ± 4.25, range: 19–43) frontal  facial neutral photos.

Table 1. Basic description of the sample of the participants (raters) who rated whole faces on attractiveness 
CultureNumber of participantsOf it females/males1Age [yrs]Distribution procedure
Australia + New Zealand5328 / 2434.51 ± 12.62Prolific (online)
Colombia3219 / 1330.12 ± 12.95Online – social media (link shared publicly), email – peers (snowball)
Czech Republic152119 / 3235.94 ± 10.13Online – social media (publicly shared link, email (snowball)
South Africa4732 /1525.62 ± 4.28Prolific (online)
Turkey7963 / 1522.15 ± 3.03Online – via email to university courses attendants
Vietnam7242 / 2826.36 ± 7.46Online (email, social media apps) – distributed by local collaborator (snowball)
1 Please note that a small fraction of participants decided not to report their gender.
Table 2. Basic description of the sample of the participants (raters) who rated iris colour 
CultureNumber of participantsOf it females/males1Age [yrs]Distribution procedure
Australia + New Zeal.4220 / 2034.00 ± 11.07Prolific (online)
Colombia2312 / 1134.09 ± 14.39Online – social media (link shared publicly), email – peers (snowball)
Czech Republic11393 / 2035.29 ± 7.86Online – social media (publicly shared link, email (snowball)
South Africa4532 /1328.53 ± 7.10Prolific (online)
Turkey5338 / 1522.38 ± 2.17Online – via email to university courses attendants
Vietnam4224 / 1625.57 ± 5.75Online (email, social media apps) – distributed by local collaborator (snowball)
1 Please note that a small fraction of participants decided not to report their gender.