See also. 1  Orthos (disambiguation) 2  Ortho Mode Transducer. 3  Orthochromatic. 4  Orthophotography. 5  Orthogonality. 6  Orthonormality. 7  Orthographic projection. 8  Orthoptera.
Doing a Fair Test. It is important for an experiment to be a fair test. You conduct a fair test by making sure that you change one factor at a time while keeping all other conditions the same. For example, let's imagine that we want to measure which is the fastest toy car to coast down a sloping ramp.ou conduct a fair test by making sure that you change one factor at a time while keeping all other conditions the same. For example, let's imagine that we want to measure which is the fastest toy car to coast down a sloping ramp.
Standardized tests are perceived as being more fair than non-standardized tests, because everyone gets the same test and the same grading system. This is more fair than a system in which some students get an easier test and others get a more difficult test.ny test in which the same test is given in the same manner to all test takers is a standardized test.