UCR SOC 005 STAT SPR 2010 Session 5 V1

UCR SOC 005 STAT SPR 2010 Session 5 V1 - THE UNIVERSITY OF...

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Unformatted text preview: THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Session 5 Wednesday, 7 April 2009 David Swanson Watkins 1223 [email protected] SOCIOLOGY 005 STATISTICAL ANALYSIS THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Today’s Schedule Lecture & Discussion: Concepts & ‘Levels of Measurement’ THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Important Concepts Case Variable Value Level of Measurement (of a variable) THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Case THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Variable THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Value THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Some important Notation X = a ‘variable’ X i = the value of ‘case ‘i’, where i = 1 to n (or N) X 1 , X 2 , X 3 , …,X n n = sample size N = population size Σ = summation sign Σ X i = the sum of the values for variable x from 1 to n (or N) THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Questions? THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Level of Measurement (of a variable) THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Level of Measurement Are the values of a variable DISCRETE OR CONTINUOUS? THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science The Levels of Measurement Nominal (Discrete) Ordinal (gray area between Discrete and continuous) Interval (Continuous) Ratio (Continuous) THE UNIVERSITY OF CALIFORNIA RIVERSIDE The University of Mississippi Institute for Advanced Education in Geospatial Science Qualities of Variables exhaustive - should include all possible answerable responses mutually exclusive - no respondent should be able to have two attributes simultaneously (e.g., employed vs. simultaneously (e....
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This note was uploaded on 10/16/2010 for the course SOC 5 taught by Professor Burke during the Spring '08 term at UC Riverside.

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UCR SOC 005 STAT SPR 2010 Session 5 V1 - THE UNIVERSITY OF...

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