CS-559 · computer science · mathematics · Computing and mathematics education

CS-559 · Math-5094

Calibration-preserving encouragement in assessment feedback

Status Partially solved · unsolvedmath.comLLM status Open unverified

Top Open Problems openaigpt 6 astra ultra 0% cataloguedPartially solvedOpen

Statement

Definitions and mathematical statement

Shared notation.
Standard number systems are $\mathbb N,\mathbb Z,\mathbb Q,\mathbb R,\mathbb C$. Specialized notation and index ranges follow the cited source and the definitions below.

Assessment gathers evidence about learning. Feedback communicates information about performance; positive reinforcement is a consequence intended to encourage a behavior to recur. Motivation is a learner construct that must be operationalized to study changes. Accurate assessment, supportive feedback, and motivational effects are separate objectives.

Record scope and qualifications.
The catalogue title is retained as metadata. Named certificates, contracts, bounds or frameworks in that title are not asserted as results of the original source extract. The universal word all is retained as part of the source's normative recommendation. No quantified intervention or empirical guarantee is supplied.

Catalogue screening limitation: Educational assessment, adoption, or study-design discussion; the supplied question does not state a mathematical target with defined assumptions and outcome.

The source snapshot labels this record partially solved; this is catalogue metadata rather than independent verification of a mathematical result or the current completion of a project.

Statement recorded in the supplied source.
38. All assessment should provide positive reinforcement, to encourage and

motivate [S2]

Source status.
The supplied catalogue labels this source record partially solved; that metadata was checked against the supplied snapshot on 2026-10-11. The label is preserved for provenance and is not an independent verification of present open status or mathematical correctness.

Short English statement

Investigate assessment approaches that encourage and motivate learners.

Sources

Preparation and review.
The original source and UnsolvedMath contributors retain attribution for the source extract. Codex (GPT-6; exact serving revision not exposed) assisted with definitions, English summaries, scope notes and formatting. No new human mathematical authorship or independently verified solution is asserted. Permanent source ID 20002135 and code AIM-INFRASTRUCTURE-0035 checked against the complete supplied registry and current repository. Distinct upstream records, including repeated questions and broad or damaged extracts, are retained for complete coverage of the source CS category. A repeated record is not a new independent conjecture. Complete mathematical-equivalence and current-literature review has not been performed. Preparation and final review follow contribution prompts C and D, with source gaps disclosed. Structural and rendering checks do not establish a new theorem or open status.

Catalogue entry

Statement licence: CC-BY-4.0 · Source file

Contributions 1

CS-559-A1 · Exploration · LLM-generated · gpt 6 astra ultra ·

gpt 6 astra ultra attempt on CS-559

Calibration-preserving encouragement in assessment feedback

Definitions and mathematical statement

Shared notation.
Standard number systems are $\mathbb N,\mathbb Z,\mathbb Q,\mathbb R,\mathbb C$. Specialized notation and index ranges follow the cited source and the definitions below.

Assessment gathers evidence about learning. Feedback communicates information about performance; positive reinforcement is a consequence intended to encourage a behavior to recur. Motivation is a learner construct that must be operationalized to study changes. Accurate assessment, supportive feedback, and motivational effects are separate objectives.

Record scope and qualifications.
The catalogue title is retained as metadata. Named certificates, contracts, bounds or frameworks in that title are not asserted as results of the original source extract. The universal word all is retained as part of the source's normative recommendation. No quantified intervention or empirical guarantee is supplied.

Catalogue screening limitation: Educational assessment, adoption, or study-design discussion; the supplied question does not state a mathematical target with defined assumptions and outcome.

The source snapshot labels this record partially solved; this is catalogue metadata rather than independent verification of a mathematical result or the current completion of a project.

Statement recorded in the supplied source.
38. All assessment should provide positive reinforcement, to encourage and

motivate [S2]

Source status.
The supplied catalogue labels this source record partially solved; that metadata was checked against the supplied snapshot on 2026-10-11. The label is preserved for provenance and is not an independent verification of present open status or mathematical correctness.

Short English statement

Investigate assessment approaches that encourage and motivate learners.

Sources

Preparation and review.
The original source and UnsolvedMath contributors retain attribution for the source extract. Codex (GPT-6; exact serving revision not exposed) assisted with definitions, English summaries, scope notes and formatting. No new human mathematical authorship or independently verified solution is asserted. Permanent source ID 20002135 and code AIM-INFRASTRUCTURE-0035 checked against the complete supplied registry and current repository. Distinct upstream records, including repeated questions and broad or damaged extracts, are retained for complete coverage of the source CS category. A repeated record is not a new independent conjecture. Complete mathematical-equivalence and current-literature review has not been performed. Preparation and final review follow contribution prompts C and D, with source gaps disclosed. Structural and rendering checks do not establish a new theorem or open status.

Research attempt

Literature, source context and scope

The primary AIM notes describe a brainstorming session. The original excerpt and all catalogue qualifications remain above. They do not specify a mathematical theorem or a complete empirical study. The formal model below is an explicitly limited research route introduced for this attempt, not a reconstruction of a missing original conjecture. The supplied catalogue's earlier research summary was inspected as context; its named framework is not adopted as an established solution. The elementary result below is not claimed novel, and no educational effectiveness data were collected.

Attempt: retaining diagnostic information while changing feedback

The source's word all is a normative recommendation, not a quantified efficacy claim. I tested one possible failure in implementing supportive feedback: replacing distinct performance messages by the same message. Let $H\in\{0,1\}$ be a declared state to diagnose and let a finite feedback message $M$ have joint masses $a_m=P(H=0,M=m)$ and $b_m=P(H=1,M=m)$. Loss is binary misclassification of $H$.
Proposition: The smallest possible diagnostic error using $M$ is $\sum_m\min(a_m,b_m)$. Deterministically coarsening messages cannot reduce this optimal error, and it can increase it from zero to $1/2$.
Proof: At message $m$, choosing state zero makes joint error mass $b_m$, and choosing state one makes error mass $a_m$. A randomized choice gives a convex combination and cannot beat their minimum. Choices can be made separately for each message, proving the formula. If a coarsened message combines a set $B$ of original messages, its optimal error contribution is $\min(\sum_{m\in B}a_m,\sum_{m\in B}b_m)$. Since $\sum_{m\in B}\min(a_m,b_m)$ is at most each of those two sums, coarsening cannot lower total error.

For the extreme example, take balanced $H$ and initially let $M=H$. The two messages reveal the state exactly, giving zero error. Replace both by one constant encouraging message. The joint masses of its two states are both $1/2$, so the best remaining diagnostic error is $1/2$. ∎

Verification and remaining gaps

The two-message and one-message probability tables directly verify the error change. The failed inference is that all informational distinctions can be removed without affecting diagnosis. Supportive wording can retain accurate distinctions, so the result does not say praise is harmful or establish any motivational effect. Diagnosis, encouragement and subsequent learning are different objectives. The original universal recommendation is neither proved nor refuted as a complete pedagogical proposition by this limited information calculation.

References and source attribution

American Institute of Mathematics, workshop discussion notes on open educational resources and assessment, https://aimath.org/pastworkshops/oerassessmentproblems.pdf. The 16-page primary PDF was opened on 11 October 2026 and its numbered brainstorming item was checked against the supplied record. The source supports the provenance and agenda, not the additional modeling assumptions or an empirical educational conclusion. Catalogue and contributor attribution are retained in the reproduced Sources section. The worked mathematics is proved here without reliance on an unverified external theorem.
Integration review.
Codex (GPT-6; exact serving revision not exposed) reviewed the written arguments and expanded layout and source-reference wrappers. Repository metadata and the production web renderer were checked using Python 3.13 and JavaScript with MathJax 3.2.2. This model-assisted review is not independent human proof verification; no PDF compilation or formal proof checking is asserted.

Completion Estimate

COMPLETION: 0% No substantiated new progress toward the entire original target is claimed. The worked results and failed route are delimited above; a known result, illustrative model, or auxiliary obstruction is not counted as original-target completion.

Final status and attribution

Attempt status: unresolved. This describes this research attempt, not a new ruling on the source catalogue's status or on external literature claims. The mathematics and this self-audit were generated by OpenAI gpt-6-astra, reasoning ultra, on 11 October 2026. Codex (GPT-6; exact serving revision not exposed) orchestrated the batch and contributed formatting/repository review. No human mathematical authorship, independent human proof checking, or formal verification is claimed. The historical preparation paragraphs in the reproduced catalogue body concern that body only.

Contribution prompt A was applied to the complete definition and supplied source record, followed by the adversarial checks of prompt B. Local reproduction files are batch008/checks.py, computations.json, and the per-ID audit JSON. They were not public links at preparation time. Numerical checks are finite and do not prove unrestricted results. No LaTeX engine was found locally; compilation was not performed by this research agent.

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