Evidence map›Paper›PMID 33446025›Full record

ArticleJournal of learning disabilities2021

How Specific Are Learning Disabilities?

Robin L Peterson, Lauren M McGrath, Erik G Willcutt, Janice M Keenan, Richard K Olson, Bruce F Pennington

Abstract read
In one paragraph

Article in Journal of learning disabilities, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Timed and untimed writing and math: shared and differential cognitive predictors in primary school.Child neuropsychology : a journal on normal and abnormal development in childhood and adolescence · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Spelling abilities of school-aged children with Williams syndrome.Research in developmental disabilities · 2022
    Article
  12. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Robin L PetersonUniversity of Colorado School of Medicine, Aurora, CO, USA.
Lauren M McGrathUniversity of Denver, CO, USA.
Erik G WillcuttUniversity of Colorado Boulder, USA.
Janice M KeenanUniversity of Denver, CO, USA.
Richard K OlsonUniversity of Colorado Boulder, USA.
Bruce F PenningtonUniversity of Denver, CO, USA.

Funding

VALIDITY OF SUBTYPES OF ADHDP50HD027802 · NICHD · UNIVERSITY OF COLORADO AT BOULDER · PI ERIK G WILLCUTT · 1990 to 2026
$44.9M
Cognitive and neural predictors of comorbidity between reading and attention problemsR15HD086662 · NICHD · UNIVERSITY OF DENVER (COLORADO SEMINARY) · PI MCGRATH, LAUREN M · 2016 to 2016
$410k
NICHD NIH HHS P50 HD027802NICHD NIH HHS R15 HD086662
6 · The paper itself

Abstract

Despite historical emphasis on "specific" learning disabilities (SLDs), academic skills are strongly correlated across the curriculum. Thus, one can ask how specific SLDs truly are. To answer this question, we used bifactor models to identify variance shared across academic domains (academic

Indexed as

Learning DisabilitiesAdolescentChildHumansLanguageMathematicsReadingWritingmathematicsreadingwriting

Identifiers

PMID33446025
PMCPMC8277890

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.