Table 1. Descriptive statistics for different observer groups.

	African observers		Scottish observers
	N	Age	N	Age
African images
Female	30 (14 male)	20.28±1.78	32 (13 male)	20.56±1.72
Male	29 (14 male)	20.75±2.63	30 (10 male)	20.60±1.63
Scottish images
Female	29 (11 male)	20.90±1.76	26 (12 male)	22.81±2.02
Male	27 (10 male)	20.47±2.06	23 (10 male)	21.24±2.21

Age indicated as Mean±SD. N refers to the number of observers.