Pre- and post-test performance for worseners, non-learners, and controls on the trained and untrained conditions. As in Fig. 3, but for the three conditions completed by all of the adolescent worseners (filled hourglasses), non-learners (filled squares), and controls (open circles). Asterisks mark the conditions on which the post-test thresholds of the worseners were significantly higher than those of controls. Note that the range of values on the axes varies across conditions.