In the second language purchase lookup, the newest crucial several months hypothesis ( cph ) holds that the means anywhere between learners’ ages in addition to their awareness so you’re able to 2nd vocabulary input is non-linear. This papers revisits the latest indistinctness found in the books in regards to to this hypothesis’s range and predictions. Though their extent is clearly delineated and its predictions is actually spelt out, although not, empirical degree–which have pair exclusions–have fun with analytical (statistical) systems which can be irrelevant according to forecasts generated. It report covers mathematical fallacies common for the cph lookup and depicts a choice logical method (piecewise regression) in the form of a good reanalysis off several datasets of a great 2010 paper purporting to have located get across-linguistic facts in favour of the fresh new cph . That it reanalysis implies that this years patterns predict by cph aren’t cross-linguistically strong. Applying the principle of parsimony, it’s concluded that years habits within the second words purchase are not ruled because of the a serious months. In conclusion, that it paper features the character out-of verification prejudice from the medical agency and brings next language buy researchers so you’re able to reanalyse the old datasets using the measures chatted about within paper. Read More
