Figure 3
From: Colour information biases facial age estimation and reduces inter-observer variability

Rating comparison in Experiment 3. Note: Each of the 200 data points represents a particular stimulus identity. The red line is a reference line of equality. The legends describe the characteristics of the images. (a) Median age ratings. Points above the red line are images that have older ratings in the higher yellow–blue contrast (YB+) condition compared to the lower yellow–blue contrast (YB−) condition. Filled points are images that have significantly different mean age ratings between the two conditions (independent samples t tests, uncorrected for multiple comparisons). No cases exceed the false discovery rate (FDR) threshold for q < 0.05 when we corrected these p values for multiple comparisons across images. (b) Between participants SD of age ratings. Points above the red line are images that have higher SD in the YB+ condition compared to the YB− condition. Filled points are images that have significantly different SDs between the two conditions (F-tests, uncorrected for multiple comparisons). No cases exceed the false discovery rate (FDR) threshold for q < 0.05 when we corrected these p values for multiple comparisons across images.