Did William Shakespeare and Thomas Kyd Write Edward III?

William Shakespeare is believed to be a significant author in the anonymous play, The Reign of King Edward III, published in 1596. However, recently, Thomas Kyd, has been suggested as the primary author. Using a neurolinguistics approach to authorship identification we use a four-feature technique, RPAS, to convert the 19 scenes in Edward III into a multi-dimensional vector. Three complementary analytical techniques are applied to cluster the data and reduce single technique bias before an alternate method, seriation, is used to measure the distances between clusters and test the strength of the connections. We find the multivariate techniques robust and are able to allocate up to 14 scenes to Thomas Kyd, and further question if scenes long believed to be Shakespeare's are not his.