Interdisciplinary synthesis has been envisioned for sometime. I am glad to have read Patricia Koh’s ‘A-Level General Paper Comprehension: Mastering Short Questions.’ (2014: Singapore. Market Asia Media Private Limited).
Tone questions from source based studies (in History) are probably so challenging because we lack the vocabulary. Koh lists 7 “Positive” and 9 “Negative” ones. There is a shorter list on “Others”. This is a useful starting point for providing fine-tuned and precise answers.