What is Bayesian reasoning and when might it be used in COPTR Stage 1?

• A. A frequentist method using p-values only; used when data are abundant.
• B. An approach updating belief with prior information and new data; used when data are sparse or prior knowledge is valuable.
• C. A qualitative method focusing on expert interviews; used when data are numerical.
• D. A method that ignores prior information; used when prior is irrelevant.

Answer: (B)