Pedro Paulo Pires

3 Questions 17 Answers 0 Followers

Questions related from Pedro Paulo Pires

Concerning the package pROC for R and ROC curve?

So there I was testing ROC for a scale to predict intellectual deficit as the scale tests for some basic skills. So what matters here is that as the scoring goes lower, there should be a higher...

01 March 2017 8,448 3 View

For GPCM, how can I obtain item locations from MIRT package in R?

So, I've been stuck trying to get item locations from mirt while using GPCM. I know that eRm usually gives you both item location and thresholds, but somehow I haven't been able to find out where...

19 September 2016 4,029 6 View

Item and Test Information Function rule of thumb. Are there recommendations?

I've been working with IRT and usually I interpret the item information function and test information function based on the purpose of the measure I'm developing. A screening measure will most...

09 August 2016 6,658 5 View