Clever Hans and facilitated communication
Cueing is a real risk in partner-mediated communication. It is also a testable one — and modern practice tests for it.
You probably arrived here searching for facilitated communication, which is a term used under the broader umbrella of Assisted Communication (AC) — which also includes S2C, RPM, the Spellers Method, FC and Supported Typing. Each of these methods has distinct approaches, while they each share the foundational principles of presuming competence, authentic communication, and developing independence.
Clever Hans was a horse in early-1900s Berlin who appeared to do arithmetic by tapping his hoof. The psychologist Oskar Pfungst, in a careful series of tests, showed that the horse was reading subtle, unconscious body-language cues from his questioner. Clever Hans is the canonical example of unintended cueing, and it is the standard analogy critics use to dismiss facilitated communication.
What the analogy claims
That the nonspeaking typist, like Hans, is reading micro-cues from the communication partner rather than producing original content. If true, output should collapse when the partner doesn't know the answer, when the partner is unfamiliar, or when the partner is absent.
What modern typists actually do
- Produce content the partner doesn't have. Documented across medical appointments, legal proceedings, and academic work.
- Type with multiple partners, including new ones — a basic threshold Clever Hans could not pass.
- Look at the target letter before pointing. Jaswal et al. (2020) eye-tracking work shows gaze-leads-motor, not the reverse pattern cueing predicts.
- Continue independently. Many fade to full independent keyboard use.
Where the analogy lands
Cueing is a genuine risk in any partner-mediated communication, and untrained facilitation can fall prey to it. That risk is precisely why fading — physical to postural to proximity to none — is the central clinical objective in responsible programs, and why authorship verification is treated as ongoing. The Clever Hans frame describes a failure mode the field already takes seriously, not a refutation of the practice.
Frequently asked questions
- What was Clever Hans?
- Clever Hans was a horse in early-1900s Berlin who appeared to do arithmetic by tapping his hoof. Psychologist Oskar Pfungst showed the horse was reading subtle, unconscious body-language cues from his questioner — he could not answer questions the questioner didn't know.
- Is facilitated communication just Clever Hans?
- The analogy assumes the typist is reading the partner's cues rather than expressing their own thoughts. It is testable. Modern skilled typists pass tests Clever Hans could not: they produce content the partner doesn't know, they continue typing across multiple partners, and they keep producing novel writing after physical support is faded entirely.
- What does the Clever Hans critique correctly identify?
- It correctly identifies cueing as a real risk in any partner-mediated communication. That is exactly why fading, authorship verification, and eye-tracking are central to responsible supported-typing practice — and why the field treats partner training and independence as the goal, not optional polish.