Evidence map›Paper›PMID 26146950›Full record

ArticlePsychological assessment2016

Do neuropsychological test norms from African Americans in the United States generalize to a Zambian population?

Knut A Hestad, J Anitha Menon, Robert Serpell, Lisa Kalungwana, Sidney O C Mwaba, Norma Kabuba, Donald R Franklin, Anya Umlauf, Scott Letendre, Robert K Heaton

Abstract read
In one paragraph

Article in Psychological assessment, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Cognitive Impairment in Zambians With HIV Infection and Pulmonary Tuberculosis.Journal of acquired immune deficiency syndromes (1999) · 2019
    Article
  8. Article
  9. Article
  10. Neuropsychological Assessment: Past and Future.Journal of the International Neuropsychological Society : JINS · 2017
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
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

10 authors.

Knut A HestadDepartment of Psychology, The Norwegian University of Science and Technology.
J Anitha MenonDepartment of Psychology, University of Zambia.
Robert SerpellDepartment of Psychology, University of Zambia.
Lisa KalungwanaDepartment of Psychology, University of Zambia.
Sidney O C MwabaDepartment of Psychology, University of Zambia.
Norma KabubaDepartment of Psychology, University of Zambia.
Donald R FranklinDepartment of Psychiatry, University of California at San Diego.
Anya UmlaufDepartment of Psychiatry, University of California at San Diego.
Scott LetendreDepartment of Psychiatry, University of California at San Diego.
Robert K HeatonDepartment of Psychiatry, University of California at San Diego.

Funding

STRUCTURAL NEUROIMAGING COREP30MH062512 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DAVID J MOORE · 2001 to 2026
$50.4M
NIMH NIH HHS P30 MH062512
6 · The paper itself

Abstract

Healthy Zambian adults (N = 324) were evaluated to determine to what degree a Western neuropsychological (NP) test battery, with African American norms adjusted for age, gender, and education could be used in healthy Zambians, including 157 men (48.46%) and 167 women (51.54%) with an average age of 38.48 (SD = 12.80) years and an average education level of 11.02 (SD = 2.58) years. The NP battery included tests of attention/working memory, executive function, verbal fluency, processing speed, verbal and visual episodic memory, and fine motor skills. The Zambian Achievement Test (ZAT) and the U.S. Wide Range Achievement Test-4 (WRAT-4) reading subtest also were administered to assess literacy and quality of education. Similar to findings in Western countries, the Zambian results show substantial age and education effects on most tests and smaller, less consistent effects of gender. Beyond the basic demographic effects, urban/rural background had small effects on some cognitive variables, and the ZAT (but not WRAT-4) reading level was a robust predictor of performance on many NP tests, even when other background characteristics were controlled. Women in the United States tend to outperform men on tests of processing speed and episodic memory. However, Zambian women showed modest but statistically significant disadvantages versus their male counterparts. The results show that tests developed in the United States may be used in Zambia. Nevertheless, development and use of local cultural norms remains very important and is a must. New demographically corrected norms were developed for the cohort that was examined.

Indexed as

Cross-Cultural ComparisonNeuropsychological TestsAdultAgedBlack or African AmericanFemaleHealthy VolunteersHumansMaleMiddle AgedReference ValuesUnited StatesZambia

Identifiers

PMID26146950
PMCPMC4703578

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.