Understanding Independent and Dependent Variables

What is the primary difference between independent and dependent variables?

• Dependent variables are always numerical.

• Independent variables rely on dependent variables.

• Dependent variables are manipulated in experiments.

• Independent variables are the cause, while dependent variables are the effect.

In the context of height and weight, which statement is correct?

• Height depends on weight.

• Weight depends on height.

• Both height and weight are independent.

• Neither height nor weight is dependent.

Which of the following is a correct relationship?

• Age depends on salary.

• Salary depends on age.

• Ethnicity depends on hair color.

• Homework hours depend on test results.

How does test result relate to homework hours?

• Neither is dependent.

• Both are independent.

• Homework hours depend on test result.

• Test result depends on homework hours.

Which statement about blood alcohol level and reaction time is true?

• Both are independent.

• Neither is dependent.

• Reaction time depends on blood alcohol level.

• Blood alcohol level depends on reaction time.

What determines the mode of transport in relation to distance from home to school?

• Distance depends on mode of transport.

• Neither is dependent.

• Mode of transport depends on distance.

• Both are independent.

Which variable is dependent in the context of comfort level and temperature?

• Comfort level is independent.

• Both are dependent.

• Temperature is dependent.

• Comfort level is dependent.

In the example of education level and salary, which is the independent variable?

• Both are independent

• Neither is independent

• Education level

• Salary

What is the relationship between the percentage of smokers and lung cancer occurrences?

• Lung cancer occurrences depend on the percentage of smokers.

• The percentage of smokers depends on lung cancer occurrences.

• Both are independent.

• Neither is dependent.

In the exam question about arm span and height, which is the independent variable?

• Neither is independent

• Both are independent

• Height

• Arm span