ANOVA with Between- and Within- Subject Variables (1 of 3)
It is common for designs to have a combination of between- and
within-subject variables. In this section designs with one between-
and one within-subject variable are discussed.
Consider an experiment in which
four 8-year-old and four and 12-year-old subjects are given five trials on
a motor learning task. There are two variables: age and trials. Age is a between-subject
variable since each subject is in either one age group or the other. Trials
is a within-subject variable since each subject performs on all five trials.