“…Its contribution to working memory can be measured through recall item duration, that is, the time that elapses between the recall of two successive items. Unlike span length (i.e., the highest amount of information that children can recall accurately), recall durations offer direct insight on the temporal dynamic of memory search and recall processes and they correlate with academic achievement over and beyond span length (Cowan, 1992; Cowan et al, 1994, 1998, 2003; Towse, Cowan, Horton, & Whytock, 2008; Towse et al, 2008). Critically, the recall duration for the first item in the memorandum, that is, the preparatory interval, is longer than subsequent item recall durations in working memory span tasks during middle childhood and adulthood.…”