wp_pro_quiz_statistic for attempt rows and wp_pro_quiz_statistic_ref for per-question answers, plus joins to wp_users for student email and to the WP Pro Quiz quiz table for quiz titles. SleekView only reads what the plugin already writes.

No. The chart view runs aggregations against the statistic tables directly. Inline edits in the table view route through plugin APIs where supported, but chart rendering is read-only and never triggers a write.

Yes. Group a Pie by the result band on wp_pro_quiz_statistic. The donut shows the share of passing and failing attempts and is useful for calibration retros across the catalogue.

Yes. Group wp_pro_quiz_statistic_ref by question_id with a pass-rate aggregate. The bar reveals questions where almost everyone passes (too easy) or almost everyone fails (too hard or ambiguous), which is the input for a quality rewrite.

Yes. Group by create_time on wp_pro_quiz_statistic with weekly or monthly grouping and an Area or Line card. Useful for campaign reviews and for spotting a sudden adoption shift after a curriculum change.

Yes. The aggregations use the standard indexes on quiz_id, user_id and create_time. Date-scoped charts stay fast on installations with millions of attempts. All-time aggregates without a date filter are heavier and opt-in per view.

Yes. Add a filter for quiz_id and every card narrows. Useful for trainer self-service dashboards and for sharing a per-quiz retro with a course owner without exposing the wider catalogue.

Yes. Any chart card drops to the table view of the same dataset and exports respect the column choice. Useful for compliance audits and for sharing a CSV of a difficulty audit with a subject-matter expert.