within subject

Hi, I'm struggling with the Error() term for an ANOVA. I have data from an experiment where every subject performed a task under the two levels of A AND the two levels of B (ie. I have data from each subject for each of the 4 combinations: A1B1, A1B2, A2B1, A2B2). If I understand correctly, this...

Hi all, Something I came across when helping a colleague out. I can conceptualize one 'grouping' of his data as a within-subject factor or as different dependent variables. He's looking at the attributes of brands (functional/traits/values) and, in a survey, asks for the importance of each in a...

Hi! I'm using a windows 10 system and SPSS 23. I'm struggling with the procedure to analyze my data. My design has 4 factors: 1 is a between subject factor (there are two different groups of people that I tested) and the other 3 factors are within subjects (size - 9 levels, pattern - 4 levels...

Hi people, I am having some confusion over how to carry out the stats for my experiment. In the experiment, there is two condition of teaching method "prof-generated" and "student-generated" and the DV is students' quiz scores over 4 quizzes. As I carried out the experiment in a real...

Hi I am running a 3 x 4 repeated measures within subjects ANOVA - the options SPSS gives me for the pairwise adjustments is LSD, Bonferonni and Sidak. However, I need to run post hoc using TUKEY HSD. I tried changing bonferroni for TUKEY in the syntax but to no avail. Just to emphasise, I am...

Hello, My apologies if this topic should not be here. I have a within participant design with two variables: view and task. I obtain an interaction between these two factors and I want to explore it. I am using SPSS 20 and I want to check simple main effects. Someone gave me the following code...

Hi there, I'm a first year PhD student and I am a bit at a loss regarding which test to use, and how to calculate power for a grant proposal. Any help will be much appreciated! I'm running all my participants in two conditions (positive/negative), so a within-subject design My dependent...

I have been reading a lot on this site and I think I am going to analyze my data using a mixed model ANOVA- random effect= subject and 2 fixed effects- comparison and pricing (each have 2 levels). All of my subjects were in all 4 conditions (a cross between the 2 factors) and answered 3 items in...

Hi everyone, Parts of my question may seem rudimentary but the more I read, the more confused I get so I am going to completely spell out my experiment. In my study, I have created 4 conditions by crossing 2 factors- 1) comparison type 2) pricing. Each have 2 levels. My questionnaire had...