Data Distributions for the Major ECE Systems: Licensing, QRIS, and ERS

I thought it important to share with researchers who may be doing ECE research on Licensing, QRIS – Quality Rating and Improvement Systems, and ERS – Environmental Rating Scales.  Usually when we are doing research, we find the data to be normally distributed which is the case with ERS data sets.  However, in dealing with Licensing and QRIS data sets, this is not the case.  With Licensing data we find the data distributions to be highly skewed and with QRIS data we find the data distributions to be either bi-modal or highly skewed depending on if only the QRIS sites are used or the full complement of sites statewide.  Attached is a brief technical research note which depicts these data distributions for consideration when doing future research by licensing researchers.

Data Distributions for Licensing QRIS and ERS