ACT 2026 Practice Test Science Experimental Design Free Quiz 2

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ACT 2026 Practice Test Science Experimental Design Free Quiz 2

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ACT 2026 Practice Test Science Experimental Design Free Quiz 2

Practice ACT 2026 Practice Test Science MCQs from Experimental Design. Get instant results with Explanation.

General5 MCQs

11. Which variable is manipulated by the experimenter?

A. Independent variableB. Dependent variableC. Controlled variableD. Placebo

12. Which variable is measured in an experiment?

A. Independent variableB. Controlled variableC. Dependent variableD. Control group

13. What is a key characteristic of a well-designed experiment?

A. Uses multiple independent variablesB. Has only one independent variableC. Does not include a controlD. Is not repeatable

14. What is an uncontrolled variable that could affect the outcome of an experiment called?

A. Independent variableB. Dependent variableC. Constant variableD. Confounding variable

15. What is the experimental group?

A. The group that receives the treatmentB. The group that does not receive the treatmentC. The group that is used for comparisonD. The group that is observed first

General5 MCQs

16. What is a placebo?

A. The independent variableB. The dependent variableC. An inactive substance used as a controlD. A confounding variable

17. What is the purpose of controlled variables?

A. They are changedB. They are kept constantC. They are measuredD. They are the dependent variable

18. Why is randomization important in assigning subjects to groups?

A. To increase sample sizeB. To measure the dependent variableC. To control variablesD. To reduce bias

19. A researcher tests the effect of light intensity on plant growth. What is the independent variable?

A. Light intensityB. Plant growthC. Water amountD. Temperature

20. What is a requirement for a good hypothesis?

A. It is always correct.B. It is a general statement.C. It must be testable.D. It is a conclusion.

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ACT

Conducting Body: ACT Education Corp

Frequency: 7-8 Times per Year | Time: 165 Minutes

Negative Marking: No

⚡ Test Pattern (Total: 171 MCQs):

English: 50 MCQs
Math: 45 MCQs
Reading: 36 MCQs
Science: 40 MCQs

Merit Formula: Merit_calculation = University/College Specific Weightage = Not Fixed Score_range = 1–36

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