Fig. 2
From: Lineup identification in young and older witnesses: does describing the criminal help or hinder?
CAC curves showing data for 4 levels of confidence: high confidence (rating of 6 and 7), medium–high confidence (rating of 5), medium–low confidence (rating of 4), and low confidence (rating of 3, 2, and 1) for the A young and older group for the control condition, B control and experimental conditions for the young group, and C control and experimental conditions for the older group. The size of each data point represents the relative frequency of the response. The error bars plot 68% bootstrap confidence intervals, which are the bootstrap equivalent of ± 1 standard error