Repeatable Procedures and Measurements
An experiment is a series of repeatable procedures done with standardized steps. It is a technique for producing an outcome. Whether or not a step has been done correctly we determine with a measurement. For the measurement to have been done correctly others must be able to repeat it, both within this experiment and in copies, and get the same number. Objectivity is repeatability of measurements. Measurements are steps that produce numbers or other criteria that can be redone within the same experiment. Other procedures, for example the production of chemical reactions, can often not be redone within an experiment, but only in a copy. Standard steps can be replaced with non-standard steps if they produce the same measurement done with the standard measurement procedure. Measurements need not require instruments, and need not be numbers. In medicine the observed condition of the patient can serve as the measurement. Observations can be experimental steps including measurements, ...