“…Digit Span has also been found to correlate with years of education completed (r = .44, Paul et al, 2005;r = .43, Birren & Morrison, 1961), reading comprehension (r = .30; Daneman & Merikle, 1996;Norman, Kemper, & Kynette, 1992), and brain volume (r = .41; Wickett, Vernon, & Lee, 2000). Additionally, amongst a battery of cognitive ability tests, Digit Span was found to be the best predictor of academic achievement amongst learningproblem children (Serwer, Shapiro, & Shapiro, 1972). Digit Span has also been found to be a respectable predictor of job performance (medium cognitive demands: r = .51; Verive & McDaniel, 1996).…”