Full Idea
The modern default position on dispositionality is that powers or dispositions are higher-level properties objects possess by virtue of those objects' possession of lower-level qualitative (categorical) properties.
Gist of Idea
Powers or dispositions are usually seen as caused by lower-level qualities
Source
John Heil (From an Ontological Point of View [2003], 09.2)
Book Reference
Heil,John: 'From an Ontological Point of View' [OUP 2005], p.87
A Reaction
The new idea which is being floated by Heil, and which I prefer, is that dispositions or powers are basic. A 'quality' is a much more dubious entity than a power.