jamovi

I guess you already know this, but just in case... The download page https://www.jamovi.org/download.html is giving an http 500 again.

Is there a mirror somewhere I can direct people to?

The means calculated via a manual reverse coding and those via Reliability differ if some of the items don't use the full range. See attached example. My made-up items are each scored on a 5-point scale, but the actually used range for item C is [1; 4] and for D [2; 5]. If you recode those scores ma...

If you know for sure that both variables contain only zeros and ones, then an easy way to compute a XOR is to check for inequality. In compute: A != B That will give the following results: A = 0, B = 0 ==> FALSE A = 0, B = 1 ==> TRUE A = 1, B = 0 ==> TRUE A = 1, B = 1 ==> FALSE Then wrap that in an ...

Another one: Communication & Information Science, Tilburg University, Netherlands

Hi! Here's my first attempt at developing a module for outlier detection using z-scores and boxplots. Intended use is mainly for introductory statistics courses, where finding outliers with z-scores and/or boxplots is a common task. I intend to add functionality for multiple dependent variables and ...

The boxplots show outliers as 1.5 iqr under/over the box. If you change the 3 in the formula to 1.5 your formula should find the same outliers as visible the boxplots. An easy way to understand what the 3 (or 2.5 or 2) means is to do it graphically by hand: - graph the boxplot - measure the box (top...

I've run into the same problem and my (also hackish but quick) workaround is: create a new column, then copy-paste the values from the computed column into the new one, and apply the filter to the copy.

The Psychology bachelor from the Open Universiteit in The Netherlands uses jamovi as the primary software program in introductory statistics and experimental statistics; and as an option in the courses cross-sectional research and longitudinal research. The courses cross-sectional and longitudinal a...

well, thanks. We are going out with an experimental version (GMALj3) that would not mess up with old analyses one did in gamlj. One can even have both versions in parallel. Please check it out and signal any issue with the new version. Which version of jamovi do I need for GAMLj3? I tried to instal...