Psychology what experimental design?

Question

Is this design a 2x2 mixed factorial design or within? I don't know what design it is?

Subjects:

1. Randomly assigned to 1 of 2 conditions (Secondary task or no secondary tasked
2. All sunjects performed 2 counterbalanced tasks (Spatial test and Visual test)

Answer 1

Hello.

Unless, all the subjects are exposed to every treatment (spatial and visual) then it is not a within subjects design. A between subjects design has multiple treatments just as a within subjects design but a different (hopefully random) set of participants are being tested by spatial, and then another group is being tested by visual.

That being said a mixed factorial design has both a between subjects group and a within subjects set of participants (group). Under Subjects you highlighted that a group is randomly assigned which makes it a between subjects, and then another group that performs all of the independent variable tasks being measured which are the spatial and visual test, which makes them a within subjects group.

This experimental design is a 2x2 mixed factorial design because of the inclusion of the between and within subjects set of participants. An (2) condition x 2 (task) mixed factorial design uses within subjects anova to calculate the results of of your findings.