An Appropriate Correlation Coefficient Describing the Relationship Between Two Artificially

question 28

Multiple Choice

An appropriate correlation coefficient describing the relationship between two artificially dichotomous variables is

• A) biserial correlation.
• B) phi coefficient.
• C) tetrachoric correlation.
• D) point biserial correlation.

Calculate the quotient of numbers to the required decimal places and round the result accurately.

Identify and apply the concept of the mode as a measure of central tendency and its relative strengths and weaknesses.

Differentiate between the characteristics of a sample (statistic) and a population (parameter).

Recognize and explain the effects of outliers on measures of central tendency.

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Definitions:

Equivalent Ratio

A proportional relationship between two numbers or quantities, indicating how many times the first number contains the second.

Smallest Term

Smallest Term generally refers to the term in a mathematical expression or sequence with the smallest numerical value.

Ratio

A numerical relationship indicating the number of times one value is contained within or contains the other.

Equivalent Ratio

Ratios that represent the same relationship between two or more quantities, even if their numerals are different.