jamovi

Example: >column1 <- c(10, 20, 30, 40, 50, NA) > column2 <- c(8, 17, 28, 39, NA, 60) > # Incorrect calculation > m1 <- mean(column1, na.rm=TRUE) > m2 <- mean(column2, na.rm=TRUE) > pooledSD <- sd(column1 - column2, na.rm=TRUE) > d_wrong <- (m1 - m2) / pooledSD > d_wrong [1] -0.4898979 > # Correct ca...

Here is the correct way to calculate Cohen’s d for a paired samples t-test in R diffs <- column1 - column2 d <- mean(diffs, na.rm=TRUE) / sd(diffs, na.rm=TRUE) If there are missing values (NAs) in different places in each column, then length(column1) and length(column1 - column2) may not be equal. A...

difference <- column1 - column2 # sd of difference sd_diff <- sd(difference, na.rm = TRUE) # standard error of difference sediff <- sd_diff / sqrt(length(na.omit(difference))) # Cohen's d m1 <- mean(column1, na.rm = TRUE) m2 <- mean(column2, na.rm = TRUE) d <- (m1 - m2) / sd_diff In short, For paire...

Hi

You can use jYS module in jamovi library now.

Warm Regards
Seol

Hi

You can use snowCluster module for ROC analysis shown below.

Best Regards
Seol

Hi
Thanks for using MFRM model in snowIRT module.
I'm not helping with statistical interpretation, but here's the MFRM model reference I used to develop the module. I hope you find this helpful.

https://bookdown.org/chua/new_rasch_dem ... model.html

Best Regards
Seol

Hi

Thank you for your suggestions. jamovi is an open source statistics program and we are waiting for another module developer to implement the method you suggested.

Kind Regards
Seol

Hi vjalby

I look forward to working on your module. ^^

Kind Regards
Seol

Hi

What R package are you using shown above? Thanks.

Best Regards
Seol

Dear AUN22

I think you should use the snowRMM module rather than the snowIRT module. I want you to take a look at the example files and analysis options in the snowRMM module first.

Kind Regards
Seol