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This page is alzhub.org's plain-English summary of a published study, not the paper itself. It is generated from the record we hold for this study, sourced and linked below — check the original for the full text and methods.

✓ Peer-reviewed alzhub usefulness score 49 out of 100. Getting a diagnosis

Topic: Risk, prevention and care in population studies

This study examined the validity of the four standard psychological paradigms that have been operationally defined within the CogState brief computerized cognitive assessment battery. Construct validity was determined in a large group of healthy adults. CogState measures of processing speed, attention, working memory, and learning showed strong correlations with conventional neuropsychological measures of these same constructs (r's = .49 to .83). Criterion validity was determined by examining patterns of performance on the CogState tasks in groups of individuals with mild head injury, schizophrenia, and AIDS dementia complex. Each of these groups was impaired on the CogState performance measures (Cohen's d's = -.60 to -1.80) and the magnitude and nature of this impairment was qualitatively and quantitatively similar in each group. Taken together, the results suggest that the cognitive paradigms operationally defined in the CogState brief battery have acceptable construct and criterion validity in a neuropsychological context.

Key findings

Why it matters

This study examined the validity of the CogState brief computerized battery and found it correlated with standard neuropsychological tests and detected impairment in mild head injury, schizophrenia, and AIDS dementia complex. It does not test any treatment, cure or prevention for Alzheimer's disease.

Study details

How this study scored 49/100
How this study's score is builtJournal tier 7 of 10; Journal's citation record 2 of 4; Study design 0 of 12; Strength of evidence 1 of 5; Peer-review validation 10 of 10; How recent 1 of 5; Sample size 0 of 4; Effect reported 0 of 3; Studied in people 0 of 3; Randomised / blinded 0 of 2; Times cited 6 of 7; Citations per year 4 of 5; Impact for its field and year 4 of 6; Cited by studies here 2 of 6; Still being cited 3 of 4; Senior author's track record 3 of 4; Institution's track record 2 of 3; Multi-centre collaboration 2 of 3; Indexed in PubMed 2 of 2; Free to read 0 of 2. Total 49 of 100.49 of 100 points earned51 not earned

Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it.

ComponentPointsWhy
Journal tier 7 / 10 Tier 3 — peer-reviewed journal (Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists)
Journal's citation record 2 / 4 Archives of Clinical Neuropsychology: journal h-index 151 (OpenAlex, 2026-10-29)
Study design 0 / 12 No study design recorded — scores zero, not guessed (not stated in the record — scored 0)
Strength of evidence 1 / 5 Rated “low” in our summary
Peer-review validation 10 / 10 Peer-reviewed. Published as an article in a named peer-reviewed journal.
How recent 1 / 5 2009 — within 20 year(s) of the newest study here
Sample size 0 / 4 Participant count not stated — scores zero (not stated in the record — scored 0)
Effect reported 0 / 3 No effect size reported — scores zero (not stated in the record — scored 0)
Studied in people 0 / 3 Not stated whether this was studied in people — scores zero (not stated in the record — scored 0)
Randomised / blinded 0 / 2 No randomisation or blinding stated — scores zero (not stated in the record — scored 0)
Times cited 6 / 7 Cited 632 times (OpenAlex, 2026-10-10)
Citations per year 4 / 5 33.3 citations a year over 19 year(s) since 2009
Impact for its field and year 4 / 6 Cited 17.9× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here 2 / 6 Cited by 6 other studies in this library
Still being cited 3 / 4 Cited 119 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record 3 / 4 Last-listed author Robert H. Pietrzak: h-index 94 (OpenAlex, whole career)
Institution's track record 2 / 3 Yale University: institution h-index 1,927 (OpenAlex)
Multi-centre collaboration 2 / 3 OpenAlex lists 6 institution(s) in 2 countries
Indexed in PubMed 2 / 2 Indexed in PubMed (PMID 19395350)
Free to read 0 / 2 Behind a paywall — scores zero
Total 49 / 100 —

What each of these 20 components measures, and what this score is not →

Read the original

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Cite this study APA, Vancouver, BibTeX · download .bib or .ris

Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. The record names 7 authors; APA and Vancouver show the first six, BibTeX and the downloads carry all of them. Check the citation against the original before you use it.

APA 7th

Maruff, P., Thomas, E., Cysique, L., Brew, B., Collie, A., Snyder, P., et al. (2009). Validity of the CogState brief battery: relationship to standardized tests and sensitivity to cognitive impairment in mild traumatic brain injury, schizophrenia, and AIDS dementia complex. Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists. https://doi.org/10.1093/arclin/acp010

Vancouver

Maruff P, Thomas E, Cysique L, Brew B, Collie A, Snyder P, et al. Validity of the CogState brief battery: relationship to standardized tests and sensitivity to cognitive impairment in mild traumatic brain injury, schizophrenia, and AIDS dementia complex. Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists. 2009. doi:10.1093/arclin/acp010. PMID: 19395350.

BibTeX

@article{maruff2009-19395350,
  author  = {Maruff, P. and Thomas, E. and Cysique, L. and Brew, B. and Collie, A. and Snyder, P. and Pietrzak, R. H.},
  title   = {{Validity of the CogState brief battery: relationship to standardized tests and sensitivity to cognitive impairment in mild traumatic brain injury, schizophrenia, and AIDS dementia complex}},
  journal = {Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists},
  year    = {2009},
  doi     = {10.1093/arclin/acp010},
  pmid    = {19395350},
  url     = {https://doi.org/10.1093/arclin/acp010}
}

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