The Similarity Between the Intelligence Test Scores of Identical Twins

question 34

Multiple Choice

The similarity between the intelligence test scores of identical twins raised apart is

• A) less than that between children and their biological parents.
• B) equal to that between identical twins reared together.
• C) equal to that between fraternal twins reared together.
• D) greater than that between ordinary siblings reared together.

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Definitions:

Quantitative Variable

A type of variable that represents measurable quantities and can be expressed in numeric values.

Time Plots

Charts that display values against time, allowing for the observation of trends, patterns, and seasonal variations in data series.

Explanatory Variable

In statistical modeling, an explanatory variable is one that is manipulated or categorized to assess its effect on a response variable.

Scatterplot

A type of graph used in statistics to display values for two variables for a set of data.