Task complexity and task difficulty are distinct concepts¶
Claim · All claims
Evidence · 1 study · theoreticalr3·q1
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q1 i? Tasks can be difficult because of many non-interacting elements without being complex, or difficult because few interacting elements must be processed simultaneously. → Ouhao Chen · Fred Paas · John Sweller 2023
Evidence¶
Ouhao Chen · Fred Paas · John Sweller 2023¶
Ouhao Chen · Fred Paas · John Sweller. (2023). A Cognitive Load Theory Approach to Defining and Measuring Task Complexity Through Element Interactivity. Educational Psychology Review. https://doi.org/10.1007/s10648-023-09782-w
q1 · i? · theoretical · r3
Theoretical argument in the review distinguishing difficulty from complexity: memorising periodic table symbols is "a difficult, but not a complex task" because elements can be studied individually, whereas interacting elements impose heavy working memory load even when few.
"First, many elements may need to be learned even though they do not interact. For instance, learning the symbols of the periodic table in chemistry is a difficult, but not a complex task."
Discussion¶
Related Claims¶
- Learning relational categories becomes more difficult as the complexity of the knowledge type increases — related
- Element interactivity can be estimated by counting interacting elements, illustrated with about 28 elements for solving a/b = c and about 25 for a composite geometry area problem — related
- Participants rated the complex three-population scenario as more difficult than the simple one-population scenario — related
- Goal setting improves performance — related
- Task difficulty (easy vs difficult simultaneous-equation problems) has significant main effects on intrinsic and extraneous cognitive load, but not on germane load — related
- Task complexity and desirable difficulties do not significantly affect intrinsic interest or expectancies for success — related
- Task complexity has no significant impact on intrinsic interest — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
task-complexity-distinct-from-difficulty |
title |
Task complexity and task difficulty are distinct concepts |
description |
Task complexity and task difficulty are distinct concepts |
status |
review |
evidence_strength |
weak |
newest_evidence |
2023 |
generated |
by process:wiki-ingest on 2026-10-20 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — ouhao-chen-fred-paas-john-sweller-2023 |
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