Which statement about science best reflects reducing bias?

Which statement about science best reflects reducing bias?

• A. Scientists ignore bias.
• B. Science is based on consensus without review.
• C. New data never changes conclusions.
• D. Peer review helps reduce bias.

Answer: (D)

Reducing bias in science happens when work is examined by others who are not directly involved in the study. Peer review invites independent experts to assess the design, methods, data analysis, and conclusions before publication. This process highlights potential biases, asks for clarifications, and sometimes requests additional experiments or data, which helps ensure interpretations are supported by evidence. Because of this scrutiny, biases are more likely to be identified and corrected, and the research becomes more reliable and transparent. While no system is perfect, peer review is a key mechanism for reducing bias in scientific work. The other ideas don’t fit because bias isn’t ignored, consensus without review lacks critical check, and new data can and do change conclusions.

Reducing bias in science happens when work is examined by others who are not directly involved in the study. Peer review invites independent experts to assess the design, methods, data analysis, and conclusions before publication. This process highlights potential biases, asks for clarifications, and sometimes requests additional experiments or data, which helps ensure interpretations are supported by evidence. Because of this scrutiny, biases are more likely to be identified and corrected, and the research becomes more reliable and transparent. While no system is perfect, peer review is a key mechanism for reducing bias in scientific work. The other ideas don’t fit because bias isn’t ignored, consensus without review lacks critical check, and new data can and do change conclusions.