If Two Variables Were Perfectly Correlated, What Would the Coefficient

question 112

Multiple Choice

If two variables were perfectly correlated, what would the coefficient of correlation r equal?

• A) 0
• B) -1
• C) 1
• D) B or C
• E) none of these

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Definitions:

Spearman Rank

An assessment of rank correlation that doesn't rely on parametric assumptions, used to evaluate how effectively a monotonic function can represent the association between two variables.

Ordinal-Level

Refers to a level of measurement where data can be ordered or ranked, but the distances between ranks are not necessarily equal.

Point Biserial

A correlation coefficient used to measure the relationship between a binary variable and a continuous variable.

Nominal-Level

Classification of data, for which the measurement scales are categorized without any order or ranking implied among the values.