In this article, we aim to reconcile the interrelated role of social and spatial influences on colloquial German by conducting an apparent-time analysis of 15 lexical, morphological, and phonetic variables from the Atlas of Colloquial German (AdA). Specifically, we introduce a “change in variation intensity” (CVI) measure meant to gauge the degree of change in colloquial speech between younger and older cohorts. Using this measure, we investigate (a) whether the CVI within and across variables is prone to spatial patterns and (b) the extent to which the CVI differs systematically between variable types. Results from visual–spatial analyses indicate clear spatial patterns, though the geographical distributions are largely item-specific, and a linear mixed-effects model revealed no effect of variable type. More broadly, the CVI measure represents an important advancement in how we address language variation and change from a methodological-statistical perspective, specifically when dealing with heterogeneous, crowdsourced data.
