Understanding Spearman Correlation

What is the primary difference between Spearman and Pearson correlation?

• Spearman uses raw data, Pearson uses ranks

• Both use ranks

• Spearman uses ranks, Pearson uses raw data

• Both use raw data

In the example provided, what is the rank of the smallest reaction time?

• Rank 2

• Rank 1

• Rank 3

• Rank 8

How are the ranks used in calculating Spearman correlation?

• They are ignored

• They are used to calculate Pearson correlation

• They replace raw data in the calculation

• They are used to calculate mean

What does a Spearman correlation coefficient of zero indicate?

• A strong positive correlation

• A perfect correlation

• A strong negative correlation

• No correlation

If the Spearman correlation coefficient is between -1 and 0, what does it signify?

• A positive relationship

• A perfect positive relationship

• A negative relationship

• No relationship