A review of agreement measure as a subset of association measure between raters

Agreement can be regarded as a special case of association and not
the other way round. Virtually in all life or social science
researches, subjects are being classified into categories by
raters, interviewers or observers and both association and
agreement measures can be obtained from the results of this
researchers. The distinction between association and agreement for
a given data is that, for two responses to be perfectly associated
we require that we can predict the category of one response from
the category of the other response, while for two response to
agree, they must fall into the identical category. Which hence
mean, once there is agreement between the two responses,
association has already exist, however, strong association may
exist between the two responses without any strong agreement. Many
approaches have been proposed by various authors for measuring each
of these measures. In this work, we present some up till date
development on these measures statistics.