Supplemental Tables. Investigating the Theoretical Structure of the Differential Ability Scales Second Edition Through Hierarchical Exploratory
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1 Supplemental Tables Investigating the Theoretical Structure of the Differential Ability Scales Second Edition Through Hierarchical Exploratory Factor Analysis By S. C. Dombrowksi et al., Journal of Psychoeducational Assessment
2 Table A1 Differential Ability Scales, Second Edition (DAS-II) Exploratory Factor Analysis: Three Oblique Factor Solution for the Standardization Sample 5 to 8 Year Olds (N = 787) DAS-II Subtest g F1: F2: F3: h 2 Recall of Design (Gv) (.76) -.01 (.53).03 (.33).579 Copy (Gv) (.70) -.15 (.47).03 (.30).501 Matching Letter Like Form (Gv) (.66).02 (.51).10 (.29).439 Pattern Construction-Alternative (Gv) (.75).21 (.64) -.11 (.26).583 Early Number Concepts (Gc/Gf) (.70).20 (.60) -.04 (.28).499 Recognition of Pictures (Gv) (.58).00 (.46).12 (.35).350 Sequential and Quantitative Reasoning (Gf) (.73).38 (.70) -.16 (.22).604 Rapid Naming (Gs) (.50) -.03 (.38).12 (.31).264 Speed of Information Processing (Gs) (.45).05 (.33).10 (.27).210 Digit Backwards (Gsm) (.67).28 (.63).04 (.35).482 Picture Similarities (Gf) (.52).27 (.50) -.03 (.23).300 Word Definitions (Gc) (.47).90 (.75).05 (.35).584 Verbal Similarities (Gc) (-.57).77 (.76).02 (.35).583 Naming Vocabulary (Gc) (.53).72 (.71).02 (.33).508 Verbal Comprehension (Gc) (.57).58 (.68) -.01 (.30).465 Recall of Sequential Order (Gwm) (.65).47 (.71).11 (.42).539 Digit Forward (Gsm) (.55).43(.61).05 (.33).392 Matrices (Gf) (.61).38 (.62) -.04 (.27).428 Recall of Object Delayed (Glr) (.38) -.02 (.39).78 (.80).643 Recall of Object Immediate (Glr) (.44).10 (.47).76 (.82).685 Eigenvalue % Variance Factor Correlations Verbal Comprehension Visual Spatial Working Memory Note. g = general structure coefficients based on first unrotated factor coefficients (g loadings), h 2 = Communality. Factor pattern coefficients (structure coefficients) based on principal factors extraction with promax rotation (k = 4). Salient pattern coefficients presented in bold (pattern coefficient.30).
3 Table A2 Differential Ability Scales, Second Edition (DAS-II) Exploratory Factor Analysis: Five Oblique Factor Solution for the Standardization Sample 5 to 8 Year Olds (N = 787) DAS-II Subtest g F1: Gv/Gf F2: Gc F3: Gf F4: Glr F5: Gwm h 2 Recall of Designs (Gv) (.80).03 (.51) -.13 (.55) -.02 (.34) -.00 (.54).649 Copying (Gv) (.72) -.09 (.43) -.03 (.52) -.01 (.31).08 (.52).518 Pattern Construction-Alternative (Gv) (.72).14 (.60).31 (.70) -.08 (.29) -.04 (.57).588 Speed of Information Processing (Gs) (.46).03 (.32) -.08 (.33).08 (.27).02 (.34).222 Rapid Naming (Gs) (.51).03 (.37) -.03 (.39).10 (.32).03 (.39).271 Recognition of Pictures (Gv) (.58) -.01 (.42).26 (.52).16 (.37) -.15 (.40).372 Matching Letter-Like Form (Gv) (.63) -.10 (.45).23 (.58).01 (.31).16 (.55).440 Early Number Concepts (Gc/Gf).69.33(.66).04 (.55).30 (.65) -.03 (.31).13 (.59).500 Picture Similarities (Gf) (.51).28 (.50).10 (.48) -.03 (.24) -.08 (.40).313 Naming Vocabulary (Gc) (.52).78 (.75) -.14 (.51) -.02 (.35).01 (.52).575 Word Definitions (Gc) (.43).75 (.75).12 (.55).06 (.38).02 (.52).581 Verbal Similarities (Gc) (.54).68 (.77).06 (.59).01 (.38).05 (.57).591 Verbal Comprehension (Gc) (.54).50 (.67).11 (.57) -.02 (.32).04 (.53).469 Matrices (Gf) (.53).03 (.55).77 (.75).05 (.32).00 (.53).560 Sequential and Quantitative Reasoning (Gf) (.67).09 (.62).69 (.82) -.10 (.27) -.01 (.60).682 Recall of Objects-Immediate (Glr) (.43).07 (.46).04 (.39).81 (.85) -.06 (.43).724 Recall of Objects-Delayed (Glr) (.38) -.04 (.36) -.05 (.30).77 (.79).07 (.40).620 Digits Backward (Gwm) (.61) -.06 (.55).20 (.64).01 (.37).58 (.75).585 Digits Forward (Gwm) (.53).27 (.58) -.18 (.48) -.03 (.34).55 (.67).491 Recall of Sequential Order (Gwm) (.59).17 (.65).20 (.66).09 (.45).45 (.73).593 Eigenvalue % Variance Factor Correlations F F F F F Note. g = general structure coefficients based on first unrotated factor coefficients (g loadings), h 2 = Communality. Factor pattern coefficients (structure coefficients) based on principal factors extraction with promax rotation (k = 4). Salient pattern coefficients presented in bold (pattern coefficient.30).
4 Table A3 Sources of Variance in the DAS-II for the Standardization Sample5 to 8 Year Olds (N = 787) According to a SL Orthogonalization Model with Three First Order Factors General F1:? F2:? F3: Glr DAS-II Subtest b S 2 b S 2 b S 2 b S 2 h 2 u 2 Recall of Designs (Gv) Copying (Gv) Matching Letter Like Form (Gv) Pattern Construction-Alternative (Gv) Early Number Concepts (Gc/Gf) Recognition of Pictures (Gv) Sequential and Quantitative Reasoning (Gf) Rapid Naming (Gs) Speed of Information Processing (Gs) Digits Backward (Gwm) Picture Similarities (Gf) Word Definitions (Gc) Verbal Similarities (Gc) Naming Vocabulary (Gc) Verbal Comprehension (Gc) Recall of Sequential Order (Gwm) Digits Forward (Gwm) Matrices (Gf) Recall of Objects-Delayed (Glr) Recall of Objects-Immediate (Glr) Explained Common Variance (ECV) Explained Total Variance (ETV) H/ HS Note. b = factor loading, S 2 = variance explained, h 2 = communality, u 2 = uniqueness, H = Omega hierarchical (g), HS = Omega hierarchical subscale (group factors).
5 Table A4 Sources of Variance in the DAS-II for the Standardization Sample 5 to 8 Year Olds (N=787) According to a SL Orthogonalization Model with Five First-Order Factors General Gv/Gs Gc Gf Glr Gwm DAS-II Subtest b S 2 b S 2 b S 2 b S 2 b S 2 b S 2 h 2 u 2 Recall of Designs (Gv) Copying (Gv) Pattern Construction-Alternative (Gv) Speed of Information Processing (Gs) Rapid Naming (Gs) Recognition of Pictures (Gv) Matching Letter-Like Form (Gv) Early Number Concepts (Gc/Gf) Picture Similarities (Gf) Naming Vocabulary (Gc) Word Definitions (Gc) Verbal Similarities (Gc) Verbal Comprehension (Gc) Matrices (Gf) Sequential and Quantitative Reasoning (Gf) Recall of Objects-Immediate (Glr) (Gltr(gltr(Gl*(Glr)((G(Gl; Recall of Objects-Delayed (Glr) Digits Backward (Gwm) Digits Forward (Gwm) Recall of Sequential Order (Gwm) Explained Common Variance (ECV) Explained Total Variance (ETV) H/ HS Note. b = factor loading, S 2 = variance explained, h 2 = communality, u 2 = uniqueness, H = Omega hierarchical (g), HS = Omega hierarchical subscale (group factors).
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