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

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Welcome to Introductory SPSS Workshop

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  1. 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. 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

  3. 3 Scales • Ratio (real) • 0 0 • Interval (equal) • 0  Re. point • Ordinal (ranked) • How much?! Likert , 7-pt. scale • Nominal (Categorical)

  4. 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

  5. 5 Statistical Test: Descriptive • Explore data • Mean • Median • Frequency • Normality • Integrity • Graph

  6. 6 Statistical Test: ANOVA • Impact of IV (with groups) on DV • Homogeneity within groups • DV  Scale • IV  Nominal • Gender • Male • Female

  7. 7 Statistical Test: T-test • Difference • b/w 2 groups • Against a benchmark • Groups • Independent • Related • Variables • Ratio, Ordinal?

  8. 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

  9. 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?

  10. 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

  11. 11 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…

  12. Questions?

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