Identifying independent and dependent variables worksheet with answer key pdf

Dependent & Independent Variables Only

Read each sentence and determine which variables are independent and which ones are dependent.

6th Grade

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Dependent & Independent Variables w/ Equations

Determine the independent and dependent variables. Then write an equation for each

6th Grade

After finding the dependent and independent variables, students write and solve an equation for each scenario given.

6th Grade

Independent & Dependent Variables w/ Equations, Tables, & Graphs

Figure out what the dependent and independent variable is for each word problem scenario. Then write an equation and complete a table for each.

6th Grade

Read the scenario. Then determine the dependent and independent variable. Write an equation. Then make a table and a graph.

6th Grade

Algebra & Pre-Algebra Worksheets

This page links to a variety of algebra worksheet topics, including expressions, equations, and inequalities.

Sample Worksheet Images


1

Identifying Variables in Experiments

Below are descriptions of experimental studies. For each of the descriptions, identify the

independent variable(s), the levels for each of the independent variables, the conditions, and the

dependent variable(s).

1.An organizational psychologist is interested in whether lowering the temperature in a factory

will increase productivity (i.e., number of products assembled). At the factory, there are three

rooms in which products are assembled. Each room is set at one of the following

temperatures: 60 degrees, 70 degrees, or 80 degrees.

Answer: Independent Variable: Temperature

Level of the independent variable: 3 (3 Rooms)

The condition: None

Dependant Variable: Productivity

2.A psychologist is studying the effects of steroids on the aggressive behavior of male rats.

Thirty rats receive twice-daily injections of a placebo, whereas another set of 30 rats receive

twice-daily injections of a steroid. For one hour a day, the rats are placed in a cage together

and all aggressive behaviors are recorded. For one week, lab assistants count the number of

aggressive behaviors recorded to determine whether or not there is difference between the

two groups of rats.

Answer: Independent Variable: Steroids

Level of the Independent Variable: 2 (2 groups of rats)

The Condition: The group of rats receiving placebo instead of steroid

The Dependent Variable: Aggressive Behaviour

3. A psychologist is examining the effects of alcohol on people’s driving ability under different

lighting situations. The psychologist randomly assigns participants to drink 2.5 ounces of a

non-alcoholic beverage, drink 2.5 ounces of an alcoholic beverage, or 5 ounces of an

alcoholic beverage. These participants are then randomly assigned to bright-light group or a

low-light group. Participants play a simulated driving game. The simulator is set up for

daylight driving in the bright-light group and set up for night driving in the low light

condition. While playing the simulator the number of incomplete stops and number of

obstacles hit are calculated.

Answer: Independent Variable: Alcohol, lighting

Level of independent variable: 5 (3 group for drinking alcoholic & non-alcoholic

beverages, bright-light & low-light group)

The condition: Group of people who have to drink 2.5 ounce non-alcoholic beverage

The Dependent Variable: People’s driving ability

How do you identify the independent and dependent variables?

The independent variable is the cause. Its value is independent of other variables in your study. The dependent variable is the effect. Its value depends on changes in the independent variable.

What is the independent variable answer key?

Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable.

What is the independent variable worksheet?

An independent variable is the one thing you intend to vary in an experiment. A dependent variable is the thing that will change that you intend to measure as a quantitative assessment of the effect. 3.

What are some examples of independent dependent and controlled variables?

Example: a car going down different surfaces. Independent variable: the surface of the slope rug, bubble wrap and wood. Dependent variable: the time it takes for the car to go down the slope. Controlled variable: the height of the slope, the car, the unit of time e.g. minutes and the length of the slope.

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