A Researcher Wanted to See If There Was a Linear

question 19

Multiple Choice

A researcher wanted to see if there was a linear relationship between the heights of sons and the heights of their fathers. Suppose a regression analysis was run to predict the heights of the sons from the heights of their fathers. What would it mean if the intercept were 2 and the slope of the regression line 1?

• A)On average, sons are 2 inches taller than their fathers.
• B)On average, fathers are 2 inches taller than their sons.
• C)On average, sons are 1 inch taller than their fathers.
• D)On average, fathers are 1 inch taller than their sons.

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Definitions:

Research Ethics

The moral principles that guide the conduct of scientific research, focusing on issues such as integrity, respect, and responsibility.

Experimental Validity

The extent to which a study accurately reflects or assesses the specific concept that the researcher is attempting to measure.

Counterbalance

Counterbalance refers to a method used to reduce bias in experimental design by varying the order of conditions among participants to even out potential confounding variables.

Within-Subject Designs

Experimental designs where the same group of participants is exposed to each condition of the experiment, allowing direct comparison of different treatments or conditions on the same subjects.