Independent vs. Dependent Variables

Experiment to test if vitamins could extend a person's life-expectancy. IV?

A researcher plans to use a standardized memory test to evaluate the effects of herb. IV?

Students that get more sleep have better grades. DV

A scientist studies the impact of a drug on cancer. IV?

Does T.V time seem to affect the reading scores of fourth graders? DV?

Does the type of shoe affect how high you can jump? DV?

Does T.V time seem to affect the reading scores of fourth graders? IV?

Does the location of a plant affect how much the plant grows? IV?

Does the temperature of a lake affect the number of fish you catch? IV?

Does a new drug increase the maze running performance of older rats? IV?

Experiment to test if vitamins could extend a person's life-expectancy. DV?

The heartbeat of a goldfish is different in various water temperatures. DV?

Does amount of water you give a plant affect how tall the plants grows? IV?

Students that get more sleep have better grades. IV?

Temperature may cause leaves to change color. IV?

Salt in soil may affect plant growth. What is the independent variable?

This the variable that is being measured?

Does a new drug increase the maze running performance of older rats? DV

Does the temperature of a lake affect the number of fish you catch? DV?

Students who study for 20 minutes every night will get a higher test score. What is the DV?

The Variable that stays the same.

Salt in soil may affect plant growth. What is the dependent Variable?

Does heating a cup of water allow it to dissolve more sugar? IV?

Temperature may cause leaves to change color. DV?

Does giving detentions for missing home lower the amount of homework missed? DV?

Does heating a cup of water allow it to dissolve more sugar? DV?

Students who study for 20 minutes every night will get higher scores on tests. Whats the IV?

Casey thinks that if she drinks more water she can bike further. DV?

Does giving detentions for missing home lower the amount of homework missed? IV?

Bacterial growth may be affect by temperature. IV?

The heartbeat of a goldfish is different in various water temperatures. IV?

Does the location of a plant affect how much the plant grows? DV?

Plant growth may be affected by the color of light. Name the IV?

Bacterial growth may be affected by temperature. DV?

This is the variable that the experimenter changes?

A researcher plans to use a standardized memory test to evaluate the effects of herb. DV?

Does amount of water you give a plant affect how tall the plants grows? DV?

Casey thinks that if she drinks more water she can bike further. IV?

Plant growth may be affected by the color of the light. Name the DV?

Does the type of shoe affect how high you can jump? IV?