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The validity of the information and vocabulary subtests of the WAIS
Author(s) -
Feingold Alan
Publication year - 1982
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/1097-4679(198201)38:1<169::aid-jclp2270380129>3.0.co;2-9
Subject(s) - psychology , vocabulary , wechsler adult intelligence scale , predictive validity , short forms , criterion validity , test validity , incremental validity , scale (ratio) , psychometrics , construct validity , developmental psychology , clinical psychology , cognition , linguistics , psychiatry , philosophy , physics , quantum mechanics
Performed an analysis of published data on the WAIS to ascertain whether the highly reliable Information and Vocabulary subtests can function as measures of intelligence in their own right. The median criterion‐related validity coefficients of these two subtests were found to be 0.38. The Verbal and Full Scale IQs had median validity coefficients that surprisingly were not appreciably higher (.41 and 0.38, respectively). It was concluded that the addition of more WAIS subtests to a battery that already includes Information or Vocabulary will not result in any increase in predictive validity and that these additional tests, therefore, lack incremental validity.