Three experiments examined reminiscence and hypermnesia in 5- and 6-year-olds’ memory for an event across repeated interviews that occurred either immediately afterward (Experiment 1) or after a 6-month delay (Experiments 2 and 3). Reminiscence (recall of new information) was reliably obtained in all of the experiments, although the numbers of new items recalled were fewer after a delay than when the interviews occurred immediately afterward. Hypermnesia (increasing total recall over repeated recall attempts) was obtained only in Experiment 1 when interviews occurred immediately and 24 h after the event.
La Rooy, D. J., Pipe, M-E., & Murray, J. E. (2005). Reminiscence and hypermnesia in children’s eyewitness memory. Journal of Experimental Child Psychology, 90(3), 235-254. https://doi.org/10.1016/j.jecp.2004.11.002