Relationship between the IQR of the similarity score distribution and ICC.

<p>(A) Scatterplot relating the IQR of the similarity score distribution for the genuine scores and median ICC. Note the statistically significant linear relationship. Also shown are the best fitting line, the best estimate of the linear equation, the results of an F-test, and an r² estimate. (B) Scatterplot relating the IQR of the similarity score distribution for the impostor scores and median ICC. This relationship is weak and not statistically significant.