Research findings concerning verb-level influences on past-tense morphology carry implications for the careful selection of treatment targets. Using 6 of the broad criteria for "good verbs to choose" proposed by D. Crystal (1985) more than 25 years ago as a framework, this article summarizes some of the more recent research with a nod…

A comparative analysis of four studies that emphasized linguistic similarities (rather than differences) between nonstandard speakers and other groups focused on developmental characteristics of the semantic categories encoded by nonstandard speakers compared with other speakers. Implications for language assessment are discussed. (JW)