As of this morning (13 Jan) we have begun excluding votes collected from a handful of Triple J Facebook meme groups as it was found the data being collected had a strong bias to particular artists and was not representative of the data collected from other social networks.
Facebook Images (Strong Bias)
|1||Confidence - Ocean Alley||29.31%|
|2||Dinosaurs - Ruby Fields||28.28%|
|3||Like People - DZ Deathrays||21.38%|
|4||Join The Club - Hockey Dad||20.69%|
|5||Up In The Clouds - Skegss||19.66%|
|6||Sweet Release - Hockey Dad||18.97%|
|7||Scream Whole - Methyl Ethel||17.59%|
|8||Groceries - Mallrat||12.07%|
|9||The Perfect Life Does Not Exist - Ball Park Music||11.38%|
|10||When I Dream - San Cisco||11.03%|
|1||Confidence - Ocean Alley||15.56%|
|2||This Is America - Childish Gambino||12.89%|
|3||Dinosaurs - Ruby Fields||10.77%|
|4||I Said Hi - Amy Shark||9.46%|
|5||I’m Good - Wafia||8.91%|
|6||Losing It - FISHER||8.66%|
|7||MANTRA - Bring Me The Horizon||8.54%|
|8||Groceries - Mallrat||7.90%|
|9||Be Alright - Dean Lewis||7.79%|
|10||Like People - DZ Deathrays||7.77%|
The bias is clear when you look at the percentage of people voting for each song. There is a significantly larger set of users voting for particular songs on Facebook which makes the sample an obvious outlier.
In summary, a large amount was removed due to the exclusion of Facebook votes, and therefore a decrease in sample size can be observed.