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4
Analyses for Two Independent Samples
In Chapter 3, measures of association and agreement between and among
two or more variables were discussed. The objective of such procedures is
to ascertain the extent to which the variables are related. For some research
problems, the objective is to test whether differences exist between unrelated
groups.
The objective of testing two independent samples is to determine the
extent or degree to which the unrelated groups differ on some variable. For
example, one of several procedures for analysis of independent samples may
be used for research problems that aim to differentiate scores in reading
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