Other terms like linking calibratio

Other terms like linking calibration and scaling were also used to describe methods of equating. Some researchers however, argue that a method can be called
equating when it is used to equate two forms of test with the same content, and the other similar method should be
called scaling and linking. In this paper, with some simplification, the term of equating (which means establishing
some relations between the tests) is used, for it is very hard to determine whether the content and difficulty of two
tests to be equated are exactly the same.