Hello there,
In my SPSS dataset each subject is assigned a certain score upon 7 different conditions: therefore in SPSS I have 7 columns and 20 lines, each line representing a subject/case, each column reporting a value (score).
The data is normal and I want to compare the scores between the different conditions.
I understand that if I had just 2 conditions I would run a (paired samples) T-Test, while in my case I should run an ANOVA to compare all the 7 seven conditions (and then, if I obtain significance, run a post-hoc test).
If I try to run a one way ANOVA in SPSS (Analyze->Compare Means->One-Way ANOVA), I'm asked for the grouping "Factor", however I don't have a factor and therefore I cannot run the ANOVA (the "OK" button is disabled). Am I running the correct ANOVA? What do I miss?
Thank you in advance for your help
In my SPSS dataset each subject is assigned a certain score upon 7 different conditions: therefore in SPSS I have 7 columns and 20 lines, each line representing a subject/case, each column reporting a value (score).
The data is normal and I want to compare the scores between the different conditions.
I understand that if I had just 2 conditions I would run a (paired samples) T-Test, while in my case I should run an ANOVA to compare all the 7 seven conditions (and then, if I obtain significance, run a post-hoc test).
If I try to run a one way ANOVA in SPSS (Analyze->Compare Means->One-Way ANOVA), I'm asked for the grouping "Factor", however I don't have a factor and therefore I cannot run the ANOVA (the "OK" button is disabled). Am I running the correct ANOVA? What do I miss?
Thank you in advance for your help