Tom and Juanita conducted an experiment to test the effect of age
on difference threshold in children 5 years of age and younger.
They created an experimental setup that included cards mounted with
12 pairs of paint chips of the same hue but of various shades. The
difference between the first pair was fairly obvious, but the difference
between each subsequent pair decreased. The last few pairs of chips
seemed almost identical. The process that Tom and Juanita used was
to show the pairs to a child and to note the smallest amount of
difference the child could detect when asked to identify the darker
chip on each card. They tested 3 children from each of these age
groups: 2, 2.5, 3, 3.5, 4, 4.5, 5
what is the dependant/independent variables in that
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