This severely limits the validity claims that are made. (vamboozled.com)
Are not our distinctions between nature and history shortsighted anti of limited validity when seen in this cosmic perspective? (religion-online.org)
Finally, researchers discourage the use of value - added modeling in teacher evaluation practices due to their low levels of statistical reliability across years and limited validity for detecting individual teacher effects (Darling - Hammond, 2012). (edutopia.org)