Calculating a cognitive task score using map, filter, and reduce

[tpronk]

Sometimes you need to score a task online, for instance, to give feedback to a participant. This repo serves as a tutorial on how to score tasks using JavaScript's map, filter, and reduce. It currently features a single task scoring algorithm, a "VPT Difference of Means score", with the output tested against a unit test of my splithalfr package.

Note this tutorial isn't specifically for jsPsych, but for any software that collects trial data as an array as objects, e..g
[{trial: 0, rt: 123, response: "left"}, {trial: 1, rt: 456, response: "right"}, ...]. For jsPsych, you could plug the scoring algorithm into the dataFilter of the pavlovia-plugin.