PR2 Q1 W3

Nominal variables represent data that is:

• Ordered

• Categorical

• Continuous

• Quantitative

Which of the following is an example of an ordinal variable?

• Temperature in degrees Celsius

• Gender

• Educational attainment (e.g., high school, bachelor's, master's)

• Age

What type of variable has a true zero point and allows for meaningful ratios?

• Nominal

• Ordinal

• Interval

• Ratio

Exhaustive and mutually exclusive categories are characteristics of which type of variable?

• Nominal

• Ordinal

• Interval

• Ratio

In an experiment, the variable being manipulated by the researcher is called the:

• Dependent variable

• Control variable

• Independent variable

• Extraneous variable

Which type of variable is not part of the main research hypothesis but can affect the outcome of an experiment?

• Independent variable

• Dependent variable

• Control variable

• Extraneous variable

A confounding variable is one that:

• Is unrelated to the study

• Influences the dependent variable and is not controlled for

• Is a control variable

• Is an independent variable

An intervening variable is also known as a:

• Dependent variable

• Mediating variable

• Extraneous variable

• Control variable

Which of the following is an example of a continuous variable?

• Number of children in a family

• Marital status (single, married, divorced)

• Height

• Gender (male, female)

A variable that can take on only two values (e.g., yes/no or true/false) is called:

• Dichotomous

• Trichotomous

• Multiple

• Continuous