In an attempt to improve the accuracy of their recollection, patients were requested to complete their sleep assessments for the previous 24 hours before 1200 hrs on the next day.
"Clearly the decision to leave the BBC removed some of the need for further questioning, but it was clear she had lost the confidence of the committee in the accuracy of her recollections".
In terms of context-dependent discrimination, the results show that reinstated contexts further boost confidence and reduce 'don't know' responding compared to familiar contexts, while affecting forced-report recognition accuracy only when contribution of recollection to recognition performance is high.
Similarly, processing unexpected novel stimuli produced higher levels of recollection accuracy than expected novel stimuli (t26 = −4.03, P < 0.001), whereas familiarity d′ scores were higher for expected than unexpected novel stimuli (t26 = 3.16, P = 0.004).
As summarized in Table 1, processing unexpected familiar stimuli produced subsequently higher levels of recollection accuracy than processing expected familiar stimuli (t26 = −4.15, P < 0.001), whereas there was no difference in the familiarity (d′) accuracy for unexpected versus expected familiar stimuli (t26 < 1).
Note that the behavioral results included no significant study or test condition differences in terms of recollection accuracy, and significantly slower reaction times during reality monitoring of actions that had previously been imagined than for actions that had previously been performed.
When the psychologists rated the accuracy of the students' recollections for things like where they were and what they were doing, the average student scored less than three on a scale of seven.
While it's true that accuracy and confidence can correlate within a single person's repertoire of recollections, confidence is a poor marker of accuracy when judging a single act of recollection or when comparing across witnesses.
Given the relatively lower level of source memory accuracy for scenes, it may be that the degree of recollection was not sufficiently different between trials associated with successful vs. unsuccessful source judgments.
Both nonparametric tests, Wilcoxon Z = 2.20, P = 0.03, and parametric tests, t (6) = 4.81, P = 0.003, confirmed the significance of the dissociation between recollection accuracy and recollection confidence.
