equi is an R package for equipercentile equating in Equivalent Groups (EG), Single Group (SG) and Nonequivalent groups with Anchor Test with Chained Equating (NEAT-CE) designs.
The package was used for the following research (in Polish):
Wołodźko, T., Kondratek, B., and Szaleniec, H. (2014). Zrównanie ekwicentylowe na tle innych metod zrównywania na przykładzie sprawdzianu i egzaminu gimnazjalnego. Edukacja, 3(128), 112–130
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