Clin Neuropsychol. 1993 Apr;7(2):215-218. doi: 10.1080/13854049308401525.
The Clinical neuropsychologist
David Ivison
PMID: 29022475 DOI: 10.1080/13854049308401525
The relative difficulty of the logical memory passages on WMS-1, WMS-2, and WMS-R were investigated in different orders of presentation within and between test forms. No evidence of order effects on difficulty level was obtained though, as expected, the second passage on WMS-1 was the most difficult over all orders. The first passages on WMS-1 and WMS-2 and both passages on WMS-R appear to be of equivalent difficulty.