What is the difference between the Pearson r, the Spearman correlation for ranks, and the phi coefficient? How are they similar?

What will be an ideal response?


These four tests are mathematically equivalent. You can use the standard formula for the Pearson r for them all, regardless of scale of measurement. The difference among them is that when you have

Political Science

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Abraham Lincoln __________ without prior congressional approval.

A. raised an army B. spent money C. blockaded Southern ports D. suspended the right of habeas corpus E. All of these are correct.

Political Science

_________ is the ability to take the results of research and apply them in situations other than the exact one in which the research was carried out.

Fill in the blank(s) with the appropriate word(s).

Political Science

Causing skin blisters and lung damage, __________ was used broadly in artillery shells in World War I.

A. mustard gas B. chlorine C. anthrax D. smallpox

Political Science

Political parties play a role in organizing our governmental institutions, particularly the state executive and legislative branches

Indicate whether the statement is true or false

Political Science