You will be presented with a citation segment from the section of a research paper. Classify the intent behind this citation by choosing from one of the following categories:

- Method: Cites the paper for its methodology or procedure.
- Background: Cites the paper to provide background information.
- Result: Cites the paper for its findings or results.

Your answer should be a single word from the following list of options: ["Method", "Background", "Result"]. Do not include any other text in your response.

Citation sentence:

The three items were used previously in two international research projects on physical activity (Rütten et al. 2001; Stahl et al. 2001; Stahl et al. 2002), and have been tested for reliability (Rütten 2001).
Method