As researchers we would normally export the raw decision data and process it ourselves prior to conducting our analyses.

Exporting results

Go to Run Judging Session and click Decisions download a CSV file of the raw decision data.

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/b0ec831e-9ec9-4f2a-af64-cb0af764553c/Screenshot_2020-12-04_at_11.22.11.png

The CSV file will look something like the following:

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/67335b12-6673-4675-934a-a03599670313/Screenshot_2020-12-04_at_11.18.17.png

Each row in the table is a single pairwise comparison.

Processing results

The Decisions CSV file can be transformed into artefact scores for research purposes by installing the nmmBTm package for R.

############ R EXAMPLE CODE ############
#To fit the BTm model#
require(nmmBtm)
#> Loading required package: nmmBtm
decisions <- read.csv(file.choose(), header=T)
#> get the decisions
data("decisions")
mdl <- nmmBtm::btmModel(decisions)
#write the artefact scores to a CSV file
artefactscores <- mdl$effects
write.csv(scores,"artefactscores.csv")

We do not go into detail in this guide about the underlying model, but start with this PDF for further details.

This outputs a CSV file called artefactscores as follows.

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/a9068e2d-17e2-4204-824f-972bd3bda8aa/Screenshot_2020-12-04_at_11.59.09.png

The columns are: