“LW Anchoring Experiment”, Gwern2012-02-27 (R, QS, cognitive bias, statistics)⁠:

Do mindless positive/negative comments skew article quality ratings up and down?

I do an informal experiment testing whether LessWrong karma scores are susceptible to a form of anchoring based on the first comment posted; a medium-large effect size is found. Although the data does not fit the assumed normal distribution so there may or may not be any actual anchoring effect.

• Problem
• Design
  • Comment Variation
• Questions
• Data
• Analysis
  • Article Effect
  • Comment Treatment
• See Also
• External Links