Current replication
Spearman rank correlation
Not measuredNo current measurement is available in this registry.
Research study · 2025
Creating markets for under-utilised fish species: Consumer valuation of a co-created fish finger
Explore the published experiment and its available replication evidence.
Read the paper ↗01 / Human finding
What the study found
A reviewed summary is not available in this registry. Consult the published paper for the original finding.
Answer-key review: Not reviewed
02 / Experiment design
Who chose, and what varied
- Country
- United Kingdom
- Human respondents
- Not recorded
- Attributes
- 6
- Task
- discrete choice
03 / Synthetic replication
Registry replication results
Paper-era reference
2023 CLM mean Spearman ρ
Not measuredHistorical results use their original estimator and reference. They are not a matched comparison with the current run.
Detailed replication evidence · 2026-11-03
Wrong direction on 6 of 15 effects, weak ranking (ρ = 0.41); sizes not comparable (the paper reports zero-centred utilities).
Use it to generate hypotheses to test with people; sizes need the paper's respondent data, and confirm the 6 reversed effects with people.
- direction
- fails
- rank
- fails
- size
- not comparable
Supported uses
- Nothing yet without human confirmation.
Limits to keep in view
- Ranking close levels against each other; the order diverges from humans.
- Decisions that hinge on the attributes whose direction flipped (listed below).
- Effect sizes in the paper's units; only direction, rank and shape are compared.
Effects on a common scale
Human effects: zero-centred utility. Synthetic effects are multiplied by the record’s calibration factor, k = 25.1998. Calibration aligns magnitude; it does not establish agreement in unadjusted effect sizes.
| Attribute / level | Human | Human 95% half-width | Calibrated synthetic |
|---|---|---|---|
| Locally Source: Yes | 0.772 | Not measured | 1.882 |
| Locally Source: No | -0.772 | Not measured | -1.882 |
| Locally Produced: Yes | 0.595 | Not measured | 1.499 |
| Locally Produced: No | -0.595 | Not measured | -1.499 |
| Co-created: Yes | 0.589 | Not measured | -0.337 |
| Co-created: No | -0.589 | Not measured | 0.337 |
| Under-utilised: Yes | 0.664 | Not measured | 0.493 |
| Under-utilised: No | -0.664 | Not measured | -0.493 |
| Sustainably caught: Yes | 0.908 | Not measured | 1.728 |
| Sustainably caught: No | -0.908 | Not measured | -1.728 |
| Price (£): 0.75 | 1.750 | Not measured | -1.124 |
| Price (£): 1.25 | 1.250 | Not measured | -0.004 |
| Price (£): 1.75 | 0.750 | Not measured | 0.856 |
| Price (£): 2.50 | 0.000 | Not measured | -0.212 |
| Price (£): 3.75 | -1.250 | Not measured | 0.418 |
| Price (£): 5.00 | -2.500 | Not measured | 0.066 |
Subgroups · screen, not a result
Split by child: 3 of 3 significant differences keep their direction in the simulation (44% to 100%)
screen, not a result. Each row is the with children group’s effect minus the no children group’s, human in wtp, simulated on the simulation’s own scale, so compare direction, not size. A Jev fast-small screen makes no comparison claim.
- Sign agreement
- 3/3, 100%
- 95% interval
- 44% to 100%
- Shuffle null
- 53%, p 0.04
- Shape ρ
- –
- Scale ratio
- –
| Group | Simulated n | People n | ρ vs paper |
|---|---|---|---|
| no children | 246 | not given | – |
| with children | 104 | not given | – |
| Attribute / level | People Δ (95%) | Significant | Simulated Δ (own scale) | Direction |
|---|---|---|---|---|
| Locally Source: Yes | +0.16 ±0.11 | yes | +0.00 no interval | same direction |
| Locally Produced: Yes | +0.31 ±0.11 | yes | +0.02 no interval | same direction |
| Co-created: Yes | +0.37 ±0.16 | yes | +0.00 no interval | same direction |
| Under-utilised: Yes | +0.15 ±0.16 | no | +0.04 no interval | not compared |
| Sustainably caught: Yes | -0.04 ±0.13 | no | -0.00 no interval | not compared |
04 / Evidence and limitations
Follow the evidence
Missing results mean unmeasured, not zero agreement.
- missing parent paper url
- missing canonical pdf
- missing historic score
- missing resolved wandb run