jamovi

Yes, it seems that there is a bit of controversy and that some alternative concepts may better explain the effect size in these cases. R-squared is not available in post-hoc comparisons right? Would there be any alternative in this case? What is the reason why Cohen's d is not available in the LMM b...

I´m trying to do a LMM using Jamovi, but I can't find an option to report effect size. There are something to report it?

I am trying to upload the package https://aaroncaldwell.us/SimplyAgree/, since only the old version appears in the Jamovi package finder.

I collect data for 10 subjects. I measure the same variable in 2 different devices and in 4 different positions, and repeat 4 times with the same position. I´m interested I check if we have differences between positions for the same device, and for all data between devices. Also interested in check ...

I confused the concept, I wanted to refer to the homogeneity of variances when I talked about sphericity...

I am doing an RM anova, to compare repeated measures of 3 subjects in 4 different conditions. In the sphericity check, only the 4th condition is violated. I understand then that I must do a Welch anova. Would it be correct in this case to perform only the Welch Anova for condition 4 and report the r...

I want to calculate standar error of mean (SEM) for different records. The is some reference to calculate de minimum sample size, and the minimum durations of the record to be sure that the result are not for the chance?

I need to determine how many trials or records are required to be sure that my SEM (Standar error of the mean) (or any realiability index) is real. For example, I can do 3 records with the same conditions to get de SEM or CV, but its possible that I get low SEM only for chance. How be sure that is n...

thank you. But do you find the approach of the RM ANOVA + Tstudents correct?

I´m trying to do ANOVA repeated measures in JAMOVI but I can´t see effect size in posthocs. Will be correct to do separatlety paired T-student? In t-student I can only see Cohens, is possible to show eta partial?