---
{
  "schemaVersion": 1,
  "version": "1.2.0",
  "id": "E-HB2010",
  "kind": "evidence",
  "title": "Heer and Bostock: crowdsourced perception",
  "summary": "Original paper; experiment 1A and Figures 3–4.",
  "evidenceType": "experimental",
  "citation": "Jeffrey Heer and Michael Bostock. 2010. Crowdsourcing Graphical Perception: Using Mechanical Turk to Assess Visualization Design. CHI 2010, 203–212.",
  "url": "https://doi.org/10.1145/1753326.1753357",
  "reviewed": "2026-09-13"
}
---

# Heer and Bostock: crowdsourced perception

**Type:** experimental. **Reviewed:** 2026-09-13.

## Source

Jeffrey Heer and Michael Bostock. 2010. Crowdsourcing Graphical Perception: Using Mechanical Turk to Assess Visualization Design. CHI 2010, 203–212.

[Original / authoritative source](https://doi.org/10.1145/1753326.1753357) · [Full paper](https://homes.cs.washington.edu/~jheer/files/2010-MTurk-CHI.pdf)

## Scope

Original paper; experiment 1A and Figures 3–4.

## Limitations

Replicates and extends proportional judgment experiments online. Accuracy rankings are task- and stimulus-dependent; angle did not perform worse than length in this experiment. The guide does not use a universal ordering or claim the queue was tested.