title: The use of the bi-factor model to test the uni-dimensionality of a battery of reasoning tests.
abstract: BACKGROUND
  The Battery of Reasoning Tests 5 (BPR-5) aims to assess the reasoning ability of individuals, using sub-tests with different formats and contents that require basic processes of inductive and deductive reasoning for their resolution. The BPR has three sequential forms: BPR-5i (for children from first to fifth grade), BPR-5 - Form A (for children from sixth to eighth grade) and BPR-5 - form B (for high school and undergraduate students).
  
  
  METHODS
  The present study analysed 412 questionnaires concerning BPR-5i, 603 questionnaires concerning BPR-5 - Form A and 1748 questionnaires concerning BPR-5 - Form B. The main goal was to test the uni-dimensionality of the battery and its tests in relation to items using the bi-factor model.
  
  
  RESULTS
  Results suggest that the g factor loadings (extracted by the uni-dimensional model) do not change when the data is adjusted for a more flexible multi-factor model (bi-factor model).
  
  
  CONCLUSIONS
  A general reasoning factor underlying different contents items is supported.
authors: University of San Francisco, Brazil. rprimi@mac.com
authors: Ricardo
authors: R
authors: Primi
authors: Marjorie Cristina
authors: MC
authors: Rocha da Silva
authors: Priscila
authors: P
authors: Rodrigues
authors: Monalisa
authors: M
authors: Muniz
authors: Leandro S
authors: LS
authors: Almeida
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D011581:Psychological Tests; D011795:Surveys and Questionnaires; D013850:Thinking; D055815:Young Adult