The acknowledged high relationship between working memory and intelligence suggests
common underlying cognitive mechanisms and, perhaps, shared biological substrates. If this
is the case, improvement in working memory by repeated exposure to challenging span
tasks might be reflected in increased intelligence scores. Here we report a study in which
288 university undergraduates completed the odd numbered items of four intelligence tests
on time 1 and the even numbered items of the same tests one month later (time 2). In …