This trial studies how well an application-based question prompt list works in improving treatment cost discussion between patients with breast, prostate, lung, or colorectal cancer and their oncologists. An application-based question prompt list, called Discussion of Cost Application (DISCO App), may help to improve how patients and oncologists discuss cancer treatment costs.
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Patient-oncologist treatment cost discussions
Timeframe: During the treatment discussions and observed via video recordings of those discussions.
Patient-oncologist treatment cost discussions
Timeframe: Collected immediately after the interaction with the oncologist