{"id":10071,"slug":"spotify-alltime-africa-control-size-sensitivity","title":"Control size sensitivity for the rank-matched growth comparison","source":"Spotify all-time artist leaderboard as collected by the Afrobeats Wire data desk, 11 October and 11 November 2026 captures","source_url":"","source_type":"computed","method":"The rank-matched control rebuilt at four widths to test whether the control size was chosen to flatter the finding. For each width k, the k nearest-ranked non-African artists above and below each of the eight African artists inside rank 1,000 were taken, excluding any already selected. control_growth_pct is the control\u2019s combined 31-day accrual over its combined lifetime bank; african_growth_pct is the same quantity for the eight and does not change with k.","unit":"percent","license":"Afrobeats Wire's compilation and analysis are licensed CC BY 4.0. Rights in the underlying source data remain with the source named above.","confidence":"medium","retrieved":"2026-11-12 14:17:55","n":4,"first_party":0,"columns":[{"key":"nearest_ranks_each_side","label":"Nearest ranks taken each side","type":"number"},{"key":"control_artists","label":"Artists in control","type":"number"},{"key":"control_growth_pct","label":"Control 31-day growth (%)","type":"number"},{"key":"control_median_growth_pct","label":"Control median growth (%)","type":"number"},{"key":"african_growth_pct","label":"African 31-day growth (%)","type":"number"}],"rows":[{"nearest_ranks_each_side":5,"control_artists":40,"control_growth_pct":1.02,"control_median_growth_pct":1.01,"african_growth_pct":1.76},{"nearest_ranks_each_side":10,"control_artists":80,"control_growth_pct":1.09,"control_median_growth_pct":1.07,"african_growth_pct":1.76},{"nearest_ranks_each_side":20,"control_artists":160,"control_growth_pct":1.11,"control_median_growth_pct":1.06,"african_growth_pct":1.76},{"nearest_ranks_each_side":50,"control_artists":400,"control_growth_pct":1.17,"control_median_growth_pct":1.06,"african_growth_pct":1.76}]}