UPSC Prelims Question Matrix: How to Analyse 1200 PYQs by Topic, Type, Trap and Source

The question matrix is a normalized table of every available GS Paper I PYQ in the Statstrive inference pack. Each row carries year, question number, subject bucket, concept label, micro-topic, question type, option pattern, source category, source status, static-current type, difficulty, cognitive demand, trap category, recurrence cluster and priority score.

It turns PYQs from a pile of papers into a searchable preparation database.

The most useful fields for daily study are subject, micro-topic, question type, trap category and priority band. The most useful fields for deeper analysis are recurrence cluster, years appeared, gap since previous appearance and source status.

Together, these fields answer the question: what exactly should I revise after seeing this PYQ?

Start with one filter combination. For example: Polity plus constitutional/statutory trap, Environment plus species-location mismatch, Economy plus current-static blend, or high priority plus unverified source status.

Then open the linked mock questions, solve them, read the explanation and write one rule. The matrix is strongest when it creates a small action, not when it becomes another page to browse passively.

Source status tells you whether exact mapping is strong or still needs work. Difficulty tells you whether the question demands recall, conceptual clarity, elimination, map awareness or source familiarity. Priority score tells you whether the micro-topic deserves stronger revision.

Use all three together. A high-priority topic with source gaps may need official-source tracking. A difficult trap-heavy topic may need table-based revision. A low-priority one-off may only need one careful note.