Skip to content

The contingency dimension: separating the load a system carries from the demand it places on the learner

Design · All designs
Evidence · 2 claims (2 for) · 1 study (1 causal), q3 · 0 of 1 report an effect size · 2 claims rest on one study

Description

The paper defines a design axis on which tutor designs sit: "We call the line those positions lie on thecontingency dimension, and contingent tutoring is movement along it during a task." Structuring changes how much load the system carries; problematizing changes how much demand the learner faces. Existing LLM tutors fix one position at design time; contingent tutoring moves along the dimension during a task, escalating after failure and fading after success. The theory has three parts: direction (the contingent shift rule), unit (decision points), and warrant (what justifies fading).

Design Implications

Context

Requirements

  • A signal the tutor can read from the learner's writing to decide when support rises and falls

Constraints

  • Positions of prior systems on the dimension are illustrative; the warrant part was tested only on a text-channel tutor with authored decision points

Target Learners

  • adult novice programmers using AI tutors

Learning Goals

  • regulatory work such as deciding, articulating and judging before help arrives

Claims

Examples

-

Key Sources

  • Hou, X., Weng, Y., Yeh, C. H., Lee, D. L., Zheng, L., Li, F., Wang, W., & Liu, Y. (2026). Adaptive Scaffolding Needs Contingency: An AI Tutor That Escalates and Fades on What the Learner Does. arXiv preprint. https://arxiv.org/abs/2609.22993. doi:10.48550/arxiv.2609.22993
Page metadata
Field Value
type design
id contingency-dimension-load-versus-demand
title The contingency dimension: separating the load a system carries from the demand it places on the learner
description The paper defines a design axis on which tutor designs sit: "We call the line those positions lie on thecontingency dimension, and contingent tutoring is movement along it during a task." Structuring changes how much...
status review
generated by process:settle-candidates on 2026-10-10
trust unverified — no one has confirmed this page's content
sources 1 — hou-2026

Frontmatter is the page's machine-readable record — see the Schema & Guide.