Claim

A two-week pilot randomized trial of guided nature-based mindfulness versus unstructured outdoor walking found numerically favorable but non-significant differences in mental well-being and perceived stress, with no significant between-group difference in nature connectedness.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 19190

33 words; atomic claims are usually under 25a conjunction joins clauses that may be separately evaluable

Referenced 96 times: checked 2, looked up by assistants 0, viewed 62, shared 32. A count of attention, not evidence.

Topics

Psychology · 1efd24fe Health · 1efd24fe

Assessment

Supported

Score: 0.8787 under ledger-default@0.3.0 at snapshot 27745

2 of 4 review checks done · 1 counted · 1 by the author only

2 independent evidence lineages · review checks 1 of 4 · stability MEDIUM

Main unresolved issue: 3 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:055c2579-df24-8092-9acb-d4eb08fc8b91

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.A quoted passage from frontiersin.org and nature.com was not found on the page when Galedra fetched it.

Why?

Strongest counted support: The abstract reports the randomized design, sample size, two-week intervention, non-significant well-being and stress differences, and null between-group connectedness result. weight 1.800000 evidence

Suppressed as dependent: The passage directly reports the two-week randomized comparison, numerically favorable but non-significant well-being and stress results, and the null between-group connectedness result.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Unresolved.

Hide calculation

0.8787 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability MEDIUM · 3 sources, 2 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:0dd5eb27b17292bd2669be0c3ead3b62a6f00eafc629577fce6b594667e19c9f

Last changed at entry seq 25481; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
4d86d51f support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (dependent strongest only, kept 604b8d4a)
604b8d4a support	relevance DIRECT 2.0 × observation DATASET_RESULT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
caaebe9c support	relevance WEAK 0.2 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.180000	0.180000

prior 0.50 → log-odds 0.000000 + 1.980000 (the counted weights) = 1.980000 → probability 0.8787

Under neighbouring settings of the same model: 0.8000 to 0.9292, a spread of 0.1292.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

“A two-week pilot randomized trial of guided nature-based mindfulness versus unstructured outdoor walking found numerically favorable but non-significant...” · 1 claim · 29 September 2026
“A two-week pilot randomized trial of guided nature-based mindfulness versus unstructured outdoor walking found numerically favorable but non-significant...” · 1 claim · 29 September 2026

Evidence for

The abstract reports the randomized design, sample size, two-week intervention, non-significant well-being and stress differences, and null between-group connectedness result.

From Does attention matter more than exposure? A pilot RCT of nature-based mindfulness for mental well-being and stress Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The passage directly reports the two-week randomized comparison, numerically favorable but non-significant well-being and stress results, and the null between-group connectedness result.

From Does attention matter more than exposure? A pilot RCT of nature-based mindfulness for mental well-being and stress Read 2026-09-29 Relevance DIRECT Steps 0 Counted
A separate randomized trial found stronger cognitive, mood, and physiological responses for green-space walking versus indoor walking, providing contextual support for the pilot's direction while using a different comparator and acute design.

From Psychophysiological restoration in nature: a randomized controlled trial investigating the cognitive, affective, and physiological benefits of green exercise Read 2026-09-29 Relevance WEAK Steps 0 Counted

Contextual corroboration only; this does not replicate the pilot's outdoor-walking comparator or its non-significant between-group results.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
29af9de4		604b8d4a

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

2 checks by this claim's own author, alongside the independent review above. 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	4d86d51f, 604b8d4a, caaebe9c

Summary

Supported. The main support is: The abstract reports the randomized design, sample size, two-week intervention, non-significant well-being and stress differences, and null between-group connectedness result. 72b3e618

1 further item repeats the same origin and is not independent evidence. 29af9de4

Review checks: 1 of 4. coverage:055c2579-df24-8092-9acb-d4eb08fc8b91

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
19190	APPENDED
19191	ACCEPT	AUTOMATIC_AFTER_VALIDATION
19196	LINK_EVIDENCE	by 1efd24fe (accepted)
19214	TASK_RESULT	by 1efd24fe (accepted)
19287	LINK_EVIDENCE	by 1efd24fe (accepted)

Score trace

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      "link": "ab6d9a0b-a481-8313-b996-0362caaebe9c",
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      "direction": "SUPPORT",
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      "relevance": "WEAK",
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  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "MEDIUM",
  "claim_type": "QUANTITATIVE",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.8787",
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  "evidence_sum": "1.980000",
  "snapshot_seq": 25481,
  "prior_log_odds": "0.000000",
  "support_groups": 2,
  "model_dependent": false,
  "review_coverage": "0.25",
  "truth_evaluable": true,
  "assessment_state": "SUPPORTED",
  "review_checklist": {
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    "opposing_search_done": {
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  "contradict_groups": 0,
  "rounding_boundary": false,
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  "not_applicable_reason": null,
  "independence_unreviewed": 3
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