Scientific methods: Main features
Objectivity: Scientists strive to be objective in their observations and measurements.Thus, their expectations should not affect what they record. (For example the interpretation of the data can be influenced by what they're looking for)
Relicability: Standardised procedures allow for replication which tests reliability. Successful replication of an experiment demonstrates its validity.
Empiricism: Obtaining data froim direct observation, or experimentation, rather than from belifes or insubstantaial arguments.
Rationality: Scientific explanations must be consistent with known facts, must be logical and rational.