Less-than-expected variability in evidence for primacy and von Restorff effects in rats' nonspatial memory.

P. Reed et al (see record 1991-11847-001) reported primacy and other effects in rats' nonspatial memory for lists. The validity of their findings is questionable, because the unexpectedly low variance of the data indicates that the trials in the experiment were not mutually independent events. (PsycINFO Database Record (c) 2010 APA, all rights reserved)