Find peer-reviewed, published research using the Inquisit Number Series Task
Thurstone, L. L. (1938). Primary mental abilities. Chicago, IL: University of Chicago Press.
Redick, T.S., Shipstead, Z., Fried, D.E., Hambrick, D.Z., Kane, M.J. & Engle, R.W. (2012).
No Evidence of Intelligence Improvement After Working Memory Training: A Randomized, Placebo-Controlled Study.
Journal of Experimental Psychology: General, 1-21.