title: An initial investigation of validation of the Matrix Analogies Test-Expanded Form in Ecuador.
abstract: This is a first preliminary study of the validity and reliability of the Matrix Analogies Test--Expanded Form in South America. Participants were 104 Spanish-speaking children between the ages of 5 and 17 years living in Ecuador. Values of Cronbach alpha ranged from .87 to .92 for the 4 groups of items and was .95 for the total score. Raw scores on the MAT increased across ages. Scores of boys did not differ significantly from those of girls. Total test scores correlated significantly with scores on the Raven Standard Progressive Matrices (r = .62, p < .005; r = .82 before controlling for age). A principal factor analysis conducted to provide evidence of the test's construct validity indicated that all four sets of items loaded substantially on one unrotated factor, presumed to be g. In sum, these results suggest that the test is a valid and reliable nonverbal measure of general cognitive ability in this population.
authors.affiliation: College of Education, Human Services and Studies, Florida State University, Tallahassee 32306-4458, USA. proctor@coe.fsu.edu
authors.forename: B E
authors.initials: BE
authors.lastname: Proctor
authors.forename: J H
authors.initials: JH
authors.lastname: Kranzler
authors.forename: A L
authors.initials: AL
authors.lastname: Rosenbloom
authors.forename: V
authors.initials: V
authors.lastname: Martinez
authors.forename: J
authors.initials: J
authors.lastname: Guevara-Aguire
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003431:Cross-Cultural Comparison; D004484:Ecuador; D005006:Ethnicity / Q000523:psychology*; D005260:Female; D006801:Humans; D007361:Intelligence Tests / Q000706:statistics & numerical data*; D008297:Male; D011340:Problem Solving; D011594:Psychometrics; D012016:Reference Values