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# Welcome to Introductory SPSS Workshop - PowerPoint PPT Presentation

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 s.singh@uwinnipeg.ca www.uwinnipeg.ca/~ssingh5. 2. Outline. Scales

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## PowerPoint Slideshow about 'Welcome to Introductory SPSS Workshop' - urian

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• Dr. Satyendra Singh

• Director, Centre for Emerging Markets

• Professor, Marketing and International Business

• Editor, International Journal of Business and Emerging Markets

• s.singh@uwinnipeg.ca

• www.uwinnipeg.ca/~ssingh5

Outline

• Scales

• Coding and Input

• Skewness (+ve/-ve), Outliers

• Statistical Tests

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

• Hands-on Exercises

• Case Study

Scales

• Ratio (real)

• 0 0

• Interval (equal)

• 0  Re. point

• Ordinal (ranked)

• How much?! Likert , 7-pt. scale

• Nominal (Categorical)

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

Statistical Test: Descriptive

• Explore data

• Mean

• Median

• Frequency

• Normality

• Integrity

• Graph

Statistical Test: ANOVA

• Impact of IV (with groups) on DV

• Homogeneity within groups

• DV  Scale

• IV  Nominal

• Gender

• Male

• Female

Statistical Test: T-test

• Difference

• b/w 2 groups

• Against a benchmark

• Groups

• Independent

• Related

• Variables

• Ratio, Ordinal?

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

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?

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

Hands-on Exercise

Age education

mom father birth wt gender smoke mom father

1 27 29 2 2.53 Male Yes 2 7

2 21 26 3 2.49 Male Yes 4 5

3 23 23 1 1.75 Female No 6 4

4 37 36 6 1.70 Male No 4 8

5 31 21 2 2.87 Male No 14 3

6 21 27 1 2.67 Female No 0 1

7 16 18 1 3.41 Female Yes 0 3

8 19 24 1 3.20 Male No 8 5

9 22 23 2 2.80 Male Yes 5 5

10….

11…

12…