Statistics in SPSS Lecture 10

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Presentation transcript:

Statistics in SPSS Lecture 10 Petr Soukup, Charles University in Prague

CORRELATION ANALYSIS 2

Correlation coefficient Measurement of relationship between cardinal and ordinal variables Effect size for relationship Values between -1 (perfect negative) and 1 (perfect positive relationship) 0 = no relationship 3

Correlation coefficient Mostly used coefficient: Pearson’s (for cardinal), Spearman’s (for ordinal) and Kendall’s (for ordinal) Analyze-Correlate-Bivariate 4

Correlation coefficient Basic principles for individual coefficient Pearson’s (for cardinal) – covariance and standardization Spearman’s (for ordinal) – correlation for rankings Kendall’s (for ordinal) – concordance and discordance 5

Correlation coefficient Test for correlation coefficient Confidence interval for correlation 6

HW 7

HW10 Try to analyze relationship between two ordinal or cardinal variables by correlation coefficient. Interpret results. 8

Thanks for your attention 9

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