Module 2 Practice Questions (3)

Front

What is a strong curvilinear relationship?

Back

A strong curvilinear relationship indicates that as one variable increases, the other variable changes in a non-linear manner, often forming a curve when plotted on a graph.

Front

What does 'case C -> C' signify in research?

Back

'Case C -> C' signifies a study that examines the relationship between two categorical variables.

Front

What does a downward trend in a scatter plot indicate?

Back

A downward trend in a scatter plot indicates a negative correlation, meaning that as one variable increases, the other variable tends to decrease.

Front

What type of study is represented by 'case Q -> Q'?

Back

'Case Q -> Q' represents a study that investigates the relationship between two quantitative variables.

Front

What does a correlation coefficient (r) of .65 imply?

Back

A correlation coefficient (r) of .65 implies a moderate to strong positive correlation, suggesting that as one variable increases, the other variable tends to increase as well.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.

Front

What is a scatter plot used for?

Back

A scatter plot is used to visually represent the relationship between two quantitative variables and to identify any correlation.

Front

Define 'negative correlation'.

Back

Negative correlation occurs when one variable increases while the other variable decreases.

Front

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

Back

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

Front

What does it mean if a study has a 'case Q -> C' classification?

Back

'Case Q -> C' indicates a study that examines how a quantitative variable affects a categorical variable.