For a designed experiment varying some of these variables across conditions or groups, you should run this generator once for each condition, changing the list parameters you want to vary across conditions. The output now contains a link to a generated CSV file you can download and assemble to prepare your stimulus lists. Please cite your use of this tool as indicated in the footer of this page.
Lists here are sampled identically, given the variable ranges. They are generally assigned randomly across subjects within a given condition to control for random sampling from a word pool.
Friendly, M. (1996), Paivio et al. Word List Generator, Online application, http://www.datavis.ca/online/paivio/,Michael Friendly