I really like this new “Scoring Information for Teachers and Partners” document from Pearson. It contains a ton of wonderful details about how the PTE test is scored. Included are detailed tables explaining how much weight each item has for each section, and for the overall score. This includes integrated items, which affect more than one section score.
The document also explains why the overall PTE score is not an average of the four section scores (which is weird, but I think I’m starting to get it).
There is also a good explanation of how score reviews work.
I would love to see more of this from test makers. It would be especially useful to learn how scores are determined on the new TOEFL, and how the test adapts to test takers as they work through it.