Analysis of information sources in references of the Wikipedia article "Lumpers and splitters" in English language version.
the Islamic fundamentalists have a holistic concept of Islam. They believe in the absolute indivisibility of the three famous D's.
The 'splitters' and the 'lumpers' have fundamentally different approaches to psychiatric diagnosis and classification. First, 'splitters' emphasise the heterogeneity within the diagnostic categories and argue that this heterogeneity drives the 'splitting' process'. 'Lumpers', on the other hand, point to the similarities between the diagnostic categories, and suggest that these similarities justify the creation of broader entities.