Desmond and Deirdre Are Two Biological Siblings Who Are Being

question 235

Multiple Choice

Desmond and Deirdre are two biological siblings who are being reared in the same home. Their IQ scores are much more similar that those of Glen and Giselle, who are biological siblings who were separated as infants and are being raised in different homes. The fact that the IQ scores of Desmond and Deirdre are much more similar than the IQ scores of Glen and Giselle provides evidence for the influence of _____ on intelligence and IQ scores.

• A)the environment
• B)genes
• C)standardization and validity
• D)linguistic relativity

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Definitions:

Simple Regression

A statistical method for modeling the relationship between a single independent variable and a dependent variable by fitting a linear equation to observed data.

Multiple Regression

A statistical technique that models the relationship between a dependent variable and two or more independent variables by fitting a linear equation to observed data.

Regression Line

A line in regression analysis that best fits a set of data points, representing the predicted relationship between an independent variable and a dependent variable.

Slope

The measure of the steepness or angle of a line, representing the rate of change between two variables.