Correlation Analysis



Lecture 4: Correlation Analysis

Correlation – The relationship between values of paired scores.

Covariation: The extent to which the pairs of values covary from one pair to the next.

Correlation analysis. A collection of techniques to examine the relationship between paired score values.

Correlation Analysis consists of . . .

1) A tabular technique: The binomial effect size display (BESD)

A 2 x 2 table presenting the relationship of paired scores relative to their respective medians.

| |X less than or equal to median |X larger than median |

|Y larger than median |# pairs in which |# pairs in which |

| |X Median of X’s and |

| |Y > Median of Y’s |Y > Median of Y’s |

|Y less than or equl to median |# pairs in which |# pairs in which |

| |X Median of X’s and |

| |Y ................
................

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