Attributable (adjective)

1. Able to be attributed to a particular cause or source.
2. Able to be ascribed to a particular cause or source.

Origin:

Late middle english: from old french attribuet, past participle of attribuer, from latin attribuere "ascribe".

Examples:

1. The success was attributable to their hard work.
2. The failure was attributable to the lack of preparation.
3. The progress was attributable to the cooperation.
4. The improvement was attributable to the new method.
5. The decline was attributable to the economic downturn.