Module 2 -1 Practice Questions

Front

What is the difference between case Q -> C and case C -> Q?

Back

Case Q -> C indicates a relationship where the question (Q) leads to a conclusion (C), while case C -> Q indicates that a conclusion (C) is drawn based on the question (Q).

Front

What does a strong curvilinear relationship indicate?

Back

A strong curvilinear relationship indicates that as one variable increases, the other variable changes in a non-linear manner, often following a curve.

Front

What does a correlation coefficient of .957 signify?

Back

A correlation coefficient of .957 signifies a very strong positive relationship between the independent and dependent variables, meaning as one increases, the other also increases.

Front

Define correlation coefficient.

Back

A correlation coefficient is a statistical measure that describes the strength and direction of a relationship between two variables.

Front

What is the significance of a correlation coefficient close to 1?

Back

A correlation coefficient close to 1 indicates a strong positive linear relationship between the two variables.

Front

What is the significance of a correlation coefficient close to -1?

Back

A correlation coefficient close to -1 indicates a strong negative linear relationship between the two variables.

Front

What does it mean if a correlation coefficient is 0?

Back

A correlation coefficient of 0 indicates no linear relationship between the two variables.

Front

What is a linear relationship?

Back

A linear relationship is a relationship between two variables that can be graphically represented as a straight line.

Front

What is a curvilinear relationship?

Back

A curvilinear relationship is a relationship between two variables that is not linear and can be represented by a curve.

Front

What is the purpose of conducting a study on handedness and lifespan?

Back

The purpose is to determine if there is a significant relationship between a person's handedness (right or left) and their lifespan.