Table 1 Summary of participant demographics and stimulus characteristics.

From: Colour information biases facial age estimation and reduces inter-observer variability

Experiment

n

Excluded

Included (M/F)

Image conditions

1

40

1

9/30, with a mean age of 19.05 (SD = 1.52)

Colour (original)/grey scale

2

45

4

12/29, with a mean age of 20.59 (SD = 5.88)

Higher/lower red–green contrast

3

44

1

3/40, with a mean age of 19.05 (SD = 1.52)

Higher/lower yellow–blue contrast