Document Detail

Estimation of premorbid general fluid intelligence using traditional Chinese reading performance in Taiwanese samples.
MedLine Citation:
PMID:  19460119     Owner:  NLM     Status:  MEDLINE    
AIMS: The aims of the present study were to (i) investigate if traditional Chinese word reading ability can be used for estimating premorbid general intelligence; and (ii) to provide multiple regression equations for estimating premorbid performance on Raven's Standard Progressive Matrices (RSPM), using age, years of education and Chinese Graded Word Reading Test (CGWRT) scores as predictor variables. METHODS: Four hundred and twenty-six healthy volunteers (201 male, 225 female), aged 16-93 years (mean +/- SD, 41.92 +/- 18.19 years) undertook the tests individually under supervised conditions. Seventy percent of subjects were randomly allocated to the derivation group (n = 296), and the rest to the validation group (n = 130). RESULTS: RSPM score was positively correlated with CGWRT score and years of education. RSPM and CGWRT scores and years of education were also inversely correlated with age, but the declining trend for RSPM performance against age was steeper than that for CGWRT performance. Separate multiple regression equations were derived for estimating RSPM scores using different combinations of age, years of education, and CGWRT score for both groups. The multiple regression coefficient of each equation ranged from 0.71 to 0.80 with the standard error of estimate between 7 and 8 RSPM points. When fitting the data of one group to the equations derived from its counterpart group, the cross-validation multiple regression coefficients ranged from 0.71 to 0.79. There were no significant differences in the 'predicted-obtained' RSPM discrepancies between any equations. CONCLUSION: The regression equations derived in the present study may provide a basis for estimating premorbid RSPM performance.
Ying-Jen Chen; Meng-Yang Ho; Kwan-Ju Chen; Chia-Fen Hsu; Shan-Jin Ryu
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-04-29
Journal Detail:
Title:  Psychiatry and clinical neurosciences     Volume:  63     ISSN:  1440-1819     ISO Abbreviation:  Psychiatry Clin. Neurosci.     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-08-07     Completed Date:  2009-10-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9513551     Medline TA:  Psychiatry Clin Neurosci     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  500-7     Citation Subset:  IM    
Graduate Institute of Clinical Behavioral Science, Chang Gung University and Chang Gung Memorial Hospital, Kwei Shan, Tao Yuan County, Taiwan.
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MeSH Terms
Age Distribution
Aged, 80 and over
Asian Continental Ancestry Group / psychology,  statistics & numerical data*
Educational Status
Intelligence Tests / statistics & numerical data*
Middle Aged
Regression Analysis
Reproducibility of Results
Wechsler Scales / statistics & numerical data

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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