I suggest reading the methodology carefully. Picking a number between 0 and 10 is hardly a robust methodology. Any two people could follow it and come to completely different answers.
The placement of the yellow dot is determined through a composite score derived from four distinct categories: Biased Wording/Headlines, Factual/ Sourcing, Story Choices, and Political Affiliation. Each category is rated on a scale of 0 to 10, with 0. indicating a lack of bias and 10 representing extreme bias. The average of these four scores is then plotted on the scale to indicate the source’s overall Left-Right bias.
I wouldn’t call picking four numbers 'a whole lot more ’ personally. If you actually read some of the bias analysis it becomes more obvious how arbitrary it is.
I suggest reading the methodology carefully. Picking a number between 0 and 10 is hardly a robust methodology. Any two people could follow it and come to completely different answers.
There is a whole lot more to it than that. You can read it here.
https://mediabiasfactcheck.com/methodology/
I wouldn’t call picking four numbers 'a whole lot more ’ personally. If you actually read some of the bias analysis it becomes more obvious how arbitrary it is.
The rubric is literally right below what you quoted
The categories are as follows:
Biased Wording/Headlines- Does the source use loaded words to convey emotion to sway the reader. Do headlines match the story?
Factual/Sourcing- Does the source report factually and back up claims with well-sourced evidence.
Story Choices: Does the source report news from both sides, or do they only publish one side.
Political Affiliation: How strongly does the source endorse a particular political ideology? Who do the owners support or donate to?
Just because it is a qualitative and not a quantitative assessment doesn’t mean it’s arbitrary.