Evidence record

Karr JE et al. The unity and diversity of executive functions: A systematic review and re-analysis of latent variable studies. Psychological Bulletin. 2018;144(11):1147-1185.

A governed Evidence source projected for the exact ND Oracle claims it bears on.

A source is not a conclusion. Read the exact claim, role, context, limitations and uncertainty together. This record is not a recommendation, diagnosis, legal decision or quality score.

Source record

Source kind: peer reviewed
Evidence model: Accepted legacy v0.1 embedded source
Accessed: 2026-08-12
Oracle last reviewed: 2026-08-12

Open source

Claims this source bears on

Common executive-function constructs such as working-memory updating, shifting and inhibition show both shared variance and separability, but studies do not support one factor structure that fits all ages and samples.

Claim reference: executive-function#executive-function-claim-unity · Confidence: high · Evidence role: Legacy source route — no v0.2 contribution role inferred

Evidence limitations

None recorded.

Claim uncertainty

Which factor models are valid across ages, cultures, neurotypes and measurement methods?

Funding and conflicts

None recorded.

Evidence projection provenance

Batch B original-five evidence review authorised by the owner on 2026-08-12 and promoted from preserved candidate blob f4a4e41e100303e40270fcb60e9ed7502e486920; candidate history remains preserved.

Public projection ID: legacy-executive-function-executive-function-source-karr-2018