Factorial or Mixed factorial design? Research methods in Psychology?

I can not figure out if this study is a factorial or a mixed factorial design, this is not a homework assignment, but it is on our study guide, although we don't have answers to it! If anyone could help this would be great ( an explanation would be great as well)





Dr. Grobe is trying to determine the best way to help people stop smoking.


He conducts an experiment in which he uses both drugs (nicotine gum vs.


the nicotine patch) and mood modification (sad movies of dying smokers or


funny “Friends” episodes). Half of the participants get to use gum and half


get to use the patch. Within these groups, half of the participants get to


watch an episode of “Friends” each time they visit the lab, and half get to


watch a 22 minute movie depicting dying smokers telling their life stories.


The average number of cigarettes smoked per day for a two-week period at


the conclusion of the study (the study lasts four weeks), is the dependent


measure

Factorial or Mixed factorial design? Research methods in Psychology?
It is mixed factorial because it is both between subjects, gum vs patch and within subjects, Friends Vs smoking videos. A factorial design involves just differences between independent variables.
Reply:Great question. Finally a question in this forum that deals with psychological science. It is indeed mixed factorial.
Reply:yeah, i'd have to agree. ?.