I give each song by a specific group a grade from 0 to 10, and afterwards calculate the average score for each album of said group and an overall average for all the songs of that group.
Since the group final scores heavily depend on the number of songs a group has released (groups with few songs can have very volatile averages, so outliers, both extremely good and extremely bad songs, will weigh a lot in the group's overall score). To solve that issue, I will be using a statistical formula that will also take into account the reliability of a group score. Which means, a group with 100 will have a higher reliability score than a group with 20 songs. In order to also not penalize newer groups in detriment of older groups with bigger discography, I've decided to give a 90% weight to the average song rate and 10% to the reliability score. The final adjusted score, which I will call Butter score, is the ultimate stat that will be used to determine the kpop group discography ranking. Please check it below.
Each group will also have their own Verdict. This is a title I will attribute to each group, and takes into account both average rate and butter score.
Minimum number of songs
Average rate (how good the songs are)
Precision score (how reliable the discography is)
Butter score (90% avg, 10% precision)
Brief description
Sublime
>100
>8.000
>6.800
>7.500
The ultimate best. Consistently superb quality.
Extraordinary
>50
>7.500
>6.000
>7.200
High quality discographies that, with time, could become Sublime.
Rising Star
<50
>7.500
3.000 - 5.500
>6.800
Groups with small discographies but with potential to grow into Extraordinary.
Unicorn
<35
>7.500
-
>6.200
Groups with smaller and/or less consistent discographies but very impressive. Too early to tell whether they can be Extraordinary.
Legend
>200
>7.000
>7.500
>7.000
Very good and extremely consistent, long and sturdy discography.
Impressive
>=50
>7.300
4.000 - 7.000
>6.800
High quality discographies with potential to become even better. One step below Extraordinary.
Solid
-
6.600 - 7.300
>5.800
>6.500
Good, reliable and consistent, but that are not (yet) my absolute favorites.
Sophomore
40 - 90
>7.000
-
>6.000
Groups with potential to grow into Impressive.
Rookie
<40
7.000 - 7.500
-
>6.000
Potential to become Unicorns or Strong.
Decent
-
>6.400
5.500 - 7.000
>6.300
Middle of the road, but consistently so.
Mixed Bag
>30
>6.500
<5.500
>6.000
Quite inconsistent and/or messy discographies, but not necessarily bad.
Lackluster
>40
>6.000
>5.000
>6.100
Not convincing, but still has a couple really good songs.
Trainee
<30
>6.000
<3.500
>5.300
Underdeveloped and too small. Not impressing me much so far still has a lot of room to grow.
Weak
>40
>5.500
>3.500
<6.100
Has had time to establish themselves but remains weak.
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