I calculated a Latent Class Analysis with JMP in the context of an validation of a questionnaire. A three class solution revealed to fit the data best. Now I have to display the “conditional item probabilities” or also called “in class probabilities” in a graphic. The aim is to obtain a graph where the individual items of the questionnaire are located on the X axis (a total of 23 items) and where the probability of affirming the item in dependence of the cluster (1/2/3) is located on the Y axis.
I will attach two screenshots of graphics I found that are exactly what I am aiming for with my dataset.
In one of the two screenshots conditional item probabilities are marked in gray in case of differing significantly between the different classes (in case of differing at least 30% or more)---- would be great if anyone knows how to include this!
Who can help me? Since it is relatively urgent, I am happy about any idea!
Thanks a lot, best regards
You will use the ability to save the results from one platform to the data table or as a new data table, prepare it for plotting, and then make your chart.
Here is the result of this process following the example from Help > Books > Multivariate Methods > Latent Class Analysis chapter with Health Risk.
Thanks a lot for your fast response. Unfortunately I fail already on step 2 because with a right click on the transposed parameter estimates table no option " make it into data table" appears but only the options "copy" "paste" and "select everything" what did I wrong?
It worked out now, thanks so much!!!
Do you also know how to mark in gray the items in case of differing significantly between the different classes (in case of differing at least 30% or more)?