research-package RP-MEASURES-2026-71B4

Outcome measurement for handoff reconstruction research

Identifier: RP-MEASURES-2026-71B4
Research Area: handoff-measurement
Discipline: software-engineering, human-factors, psychometrics, decision-science
Status: review
Version: 1.0.1
Confidence: 0.6
Priority: high
Tags: measurement, handoff, construct-validity
Updated: 2026-07-30
Source: research/packages/RP-MEASURES-2026-71B4--handoff-outcome-measurement.md

Research State Snapshot

Theory Version: TH-HANDOFF-2026-81C0 v0.1.0.
Knowledge Base Version: Outcome model v1.0.
Highest Confidence Areas: Time or document ratings alone are invalid.
Lowest Confidence Areas: Minimum practical effect and score reliability.
Largest Remaining Unknown: Whether safe continuation can be scored reliably.
Active Research Streams: Safeguards and baseline are next dependencies.
Recently Invalidated Ideas: Faster, fewer questions, or more complete is sufficient.
Priority Changes: Measurement completed; safeguards becomes rank 1.

Executive Summary

The handoff pilot should not use reconstruction time, document completeness, or clarification count as its primary outcome. Productivity and handoff effects are multidimensional [EV-MEASURES-2026-11AF; EV-MEASURES-2026-9D30], while comprehension research separates time, understanding, and executable extension and identifies expertise as a moderator [EV-MEASURES-2026-5C7E].

The recommended primary outcome is safe continuation success within a predeclared accessible time policy: the successor produces a materially correct continuation plan and completes one predeclared safe verification action without a critical unsupported assumption. Dangerous high-confidence error is a separate non-inferiority gate, not something that can be averaged away by speed. Confidence is Medium because the rubric and reliability have not been piloted.

Original Objective

Define a valid, sensitive, and gaming-resistant outcome model for EX-HANDOFF-2026-0D7A.

Success Criterion

Specify constructs, primary/secondary/harm measures, scoring, blinding, costs, minimum practical effects, missing-data treatment, and stopping rules.

Scope

Included

Recipient action, safety, efficiency, calibration, coordination, experience, authoring cost, maintenance cost, and accessibility.

Excluded

Sample-size calculation, final task corpus, participant recruitment, and data collection.

Scope Changes

Expanded from “communication improvement” to lifecycle-adjusted decision value.

Repository Context

HY-HANDOFF-2026-6B31 predicts better reconstruction. The portfolio audit found that this construct was underspecified and blocked baseline and preregistration.

Current Understanding

The intervention is useful only if it increases correct, safe action enough to justify authoring and maintenance costs without increasing false confidence, privacy/accessibility harm, or expert coordination burden.

Key Discoveries

One metric cannot represent developer productivity [EV-MEASURES-2026-11AF].
Time, correctness, and executable extension are separable and moderated by expertise [EV-MEASURES-2026-5C7E].
Handoffs have recipient-, system-, and organizational-level outcomes [EV-MEASURES-2026-9D30].
Contextual cues can improve resumption, but do not prove lifecycle benefit [EV-MAINT-2026-0A52].
Structured handoff evidence contains positive effects and low-certainty, fidelity-sensitive counterevidence [EV-SAFETY-2026-19D5; EV-SAFETY-2026-7EA2].

Evidence Registry

ID	Measurement implication	Quality/limit
EV-MEASURES-2026-11AF	use multiple dimensions	framework, not intervention validation
EV-MEASURES-2026-5C7E	separate time, correctness, action; stratify expertise	44-person test-code study
EV-MEASURES-2026-9D30	measure recipient and system outcomes	clinical-domain meta-analysis
EV-SYSTEMS-2026-A730	value depends on decision improvement	modeling burden

Hypothesis Registry

ID	Measurement interpretation	Confidence	Disposition
HY-HANDOFF-2026-6B31	structured handoff improves safe continuation net of cost	Medium	active; not yet tested

Failed Assumptions

Faster means better: rejected.
Fewer questions means better: rejected.
Reviewer-rated completeness is sufficient: rejected.
Harms can be folded into an average benefit score: rejected.
Self-reported confidence means comprehension: rejected.

Open Questions

Can blinded reviewers score safe continuation reliably?
What constitutes a critical unsupported assumption?
What time window preserves realism?
Which verification action is comparable across tasks?
What minimum success-rate gain justifies adoption?
How should authoring and maintenance time be valued?
Does the measure work across expertise levels?
How should productive clarification be scored?
Which accessibility failures count as critical harms?
Does plan success predict later task execution?

Recommended Next Research

Complete MS-SAFEGUARDS-2026-89D1.
Specify the non-ROS baseline using this outcome model.
Pilot scoring on examples without estimating treatment effects.
Preregister EX-HANDOFF only after reliability and harm gates are fixed.

Research Backlog

Predictive validation against full execution; inter-rater reliability; expertise invariance; accessibility participation; maintenance-cost follow-up.

Suggested Specialized Research Agents

Independent rubric reviewer, accessibility researcher, and experimental methodologist.

Parallel Research Opportunities

Safeguards can proceed now. Baseline design can begin from this package.

Risks

Rubric subjectivity, construct contamination, task-specific scoring, expertise imbalance, censoring bias, gaming, and underpowered harm detection.

Cross-Discipline Opportunities

Psychometrics for reliability, survival analysis for time-to-success, human factors for harm gates, and decision science for lifecycle value.

Knowledge Relationships

EV-MEASURES-* + prior EV → HY-HANDOFF-2026-6B31 → RP-MEASURES-2026-71B4 → MS-BASELINE/MS-SAFEGUARDS → MS-PREREG → EX-HANDOFF-2026-0D7A.

Theory Impact Assessment

Affected Theory Records: TH-HANDOFF-2026-81C0.
Affected Engineering Principles: Measure recipient action and harm, not artifact form.
New Principle Candidates: Harm gates cannot be offset by average speed.
Deprecated Principles: Reconstruction time as sufficient outcome.
Confidence Changes: Outcome-model confidence from Low to Medium.
Predictions Created: Safe continuation should improve without harm increase.
Predictions Invalidated: None prospectively.
Required Theory Registry Updates: None before experimental evidence.

Research Quality Metrics

Metric	Value	Method/Limit
Primary Sources	2 new plus 4 existing	targeted map
Independent Sources	6 groups	domain transfer varies
Counterexamples Reviewed	4	speed, questions, completeness, composite averaging
Competing Viewpoints Reviewed	5 outcome strategies	qualitative comparison
Hypotheses Tested	0 experimentally	design research
Failed Hypotheses	4 measurement assumptions	construct analysis
Research Completeness	80%	outcome design complete; reliability unpiloted
Confidence Gain	Low to Medium	ordinal
Open Questions Reduced	3	primary construct, harm gate, cost boundary

Research Debt

P0 Missing Experiment: rubric-only reliability pilot.
P0 Missing Evidence: predictive validity against full task execution.
P0 Missing Disciplines: direct accessibility participation.
P1 Weak Areas: minimum practical effect and cost valuation.
P1 Replication Needed: cross-task and cross-expertise invariance.
P1 Tool Limitations: no scoring corpus.
P0 Assumptions Awaiting Evidence: safe continuation is reliably observable.

Repository Updates

Created measurement mission, three evidence records, journal, and this REP; updated experiment and portfolio graph.

Website Updates

Not applicable.

AI Consumption Notes

Never summarize the recommended outcome as “time to understand.” The primary construct is safe successful continuation under a predeclared accessible time policy, with separate harm and lifecycle-cost criteria.

Handoff Instructions

Use this package to write the scoring rubric and baseline. Do not select weights for a single composite after observing treatment results. Pilot reviewer agreement before participant data.

Research Journal

JR-MEASURES-2026-B208.

Appendix

Proposed outcome model

Primary: safe continuation success within a predeclared, accessible time policy (binary).

Required harm gate: no practically important increase in critical unsafe actions or high-confidence materially incorrect plans.

Secondary: time to success; plan correctness dimensions; material omissions; unsupported assumptions; verification-step result; confidence calibration; clarification usefulness; recipient cognitive load/satisfaction.

Lifecycle/economic: authoring time, review time, maintenance/update time, expert interruption time, and rework attributable to handoff defects.

Accessibility: task completion with required assistive interaction, equivalent access to evidence, and accessibility-critical failures.

Scoring and analysis constraints

Blind at least two reviewers to condition.
Apply the same predeclared accommodation within both conditions; do not require diagnosis disclosure.
Define critical errors and examples before data.
Require acceptable inter-rater reliability before treatment evaluation.
Treat non-completion as primary failure, not missing data.
Report time among successes separately; do not let survivor bias imply speed.
Stratify or adjust for measured repository familiarity and task expertise.
Preserve each outcome; do not invent post-hoc composite weights.
Use a two-part adoption rule: meaningful success benefit plus harm non-inferiority plus positive lifecycle value.

Provisional practical thresholds

The preregistration must choose thresholds before outcome data. Starting candidates for stakeholder review are a 10 percentage-point absolute increase in safe continuation success, no more than a 2 percentage-point increase in critical harm, and positive median lifecycle time value. These are decision thresholds, not effect estimates, and require sensitivity analysis.