Welcome to Introductory SPSS Workshop
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Welcome to Introductory SPSS Workshop. Dr. Satyendra Singh Director, Centre for Emerging Markets Professor, Marketing and International Business Editor, International Journal of Business and Emerging Markets [email protected] www.uwinnipeg.ca/~ssingh5. 2. Outline. Scales

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Welcome to Introductory SPSS Workshop

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Welcome to introductory spss workshop

Welcome to Introductory SPSS Workshop

  • Dr. Satyendra Singh

  • Director, Centre for Emerging Markets

  • Professor, Marketing and International Business

  • Editor, International Journal of Business and Emerging Markets

  • [email protected]

  • www.uwinnipeg.ca/~ssingh5


Welcome to introductory spss workshop

2

Outline

  • Scales

  • Coding and Input

    • Skewness (+ve/-ve), Outliers

  • Statistical Tests

    • Descriptive, ANOVA, T-test, X2, Correlation, and Regression

  • Hands-on Exercises

  • Case Study


Welcome to introductory spss workshop

3

Scales

  • Ratio (real)

    • 0 0

  • Interval (equal)

    • 0  Re. point

  • Ordinal (ranked)

    • How much?! Likert , 7-pt. scale

  • Nominal (Categorical)


Welcome to introductory spss workshop

4

Coding and Input

  • Variables  Dep. Var. or Ind. Var.

  • All qualitative info  #s

  • #s  Normal distribution curve

  • If not  Skewness

    • +ve skewness, mean > median

    • -ve skewness, mean < median

  • Treatment of outliers


Welcome to introductory spss workshop

5

Statistical Test: Descriptive

  • Explore data

    • Mean

    • Median

    • Frequency

    • Normality

    • Integrity

  • Graph


Welcome to introductory spss workshop

6

Statistical Test: ANOVA

  • Impact of IV (with groups) on DV

  • Homogeneity within groups

  • DV  Scale

  • IV  Nominal

    • Gender

      • Male

      • Female


Welcome to introductory spss workshop

7

Statistical Test: T-test

  • Difference

    • b/w 2 groups

    • Against a benchmark

  • Groups

    • Independent

    • Related

  • Variables

    • Ratio, Ordinal?


Welcome to introductory spss workshop

8

Statistical Test: X2

  • Difference b/w 2 or more variables

  • Variables  Nominal

  • If Scale, transform it to Nominal

  • Correlation

    • Pearson if Scale

    • Spearman if Ordinal

    • Tou if Nominal


Welcome to introductory spss workshop

9

Statistical Test: Regression

  • Impact of several IVs on DV

  • Homogeneity within groups

  • DV  Scale

  • IV  Scale preferable

  • R2 (Variance Explained) >.3?

  • VIF (Variation Inflation Factor) < 5-10?


Welcome to introductory spss workshop

10

Hands-on Exercise…

What is the mean, median? Is this data normal?

$60,000

$65,000

$70,000

$80,000

$275,000

DESCRIPTIVEFREQUENCYCHART

DESCRIPTIVEEXPLORENORMALITY


Welcome to introductory spss workshop

11

Hands-on Exercise

Age education

mom father birthwt gender smoke mom father

1 27 29 2 2.53MaleYes 2 7

2 21 26 3 2.49MaleYes 4 5

3 23 23 1 1.75FemaleNo 6 4

4 37 36 6 1.70MaleNo 4 8

5 31 21 2 2.87MaleNo 14 3

6 21 27 1 2.67FemaleNo 0 1

7 16 18 1 3.41FemaleYes 0 3

8 19 24 1 3.20MaleNo 8 5

9 22 23 2 2.80MaleYes 5 5

10….

11…

12…


Welcome to introductory spss workshop

Questions?


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