Module 2 -1 Practice Questions

Front

What does 'strong curvilinear' relationship mean?

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

Back

'Case C -> Q' indicates that a characteristic (C) is being studied to see its effect on a quantity (Q), while 'case Q -> C' suggests that a quantity (Q) is being studied to see its effect on a characteristic (C).

Front

What does a correlation coefficient of .957 indicate?

Back

A correlation coefficient of .957 indicates a very strong positive relationship, meaning as the independent variable increases, the dependent variable 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 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 does 'independent variable' mean?

Back

An independent variable is a variable that is manipulated or changed in an experiment to observe its effect on a dependent variable.

Front

What does 'dependent variable' mean?

Back

A dependent variable is the variable that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What is the significance of a strong correlation?

Back

A strong correlation indicates a reliable relationship between two variables, suggesting that changes in one variable are associated with changes in another.

Front

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

Back

The purpose is to investigate whether there is a relationship between a person's handedness (right or left) and their longevity.