Full Idea
It is useful to identify three kinds of phenomenalism: theistic, sceptical and analytic; the first is represented by Berkeley, the second by Hume, and the third by most twentieth-century phenomenalists.
Clarification
'Theistic' theories involve God
Gist of Idea
Phenomenalism can be theistic (Berkeley), or sceptical (Hume), or analytic (20th century)
Source
Howard Robinson (Perception [1994], IX.4)
Book Reference
Robinson,Howard: 'Perception' [Routledge 2001], p.226
A Reaction
In Britain the third group is usually represented by A.J.Ayer. My simple objection to all phenomenalists is that they are intellectual cowards because they won't venture to give an explanation of the phenomena which confront them.