Judged: two independent readers; copy check clear.
between-subjects factor
between-subjects factor A between-subjects factor is a variable in a study that separates participants into different groups, with each person belonging to only one group.
A between-subjects factor is a variable in a study that separates participants into different groups, with each person belonging to only one group. In the example provided, skill level is a between-subjects factor because participants are classified as either experts or novices.