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Confounding Variables in Research Methods

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Confounding Variables in Research Methods

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Questions and Answers

In an experiment examining the effect of reward on children's math performance, which of the following is a valid manipulation of the independent variable?

Varying the quantity of the reward in different conditions (correct)

Providing different types of rewards in different conditions

Having the reward present in one condition and absent in another condition

Keeping the reward constant across all conditions

What does it mean for the independent variable to have two levels?

It means there are two different measurements of the independent variable

It means there are two different quantities of the independent variable (correct)

It means there are two different conditions in the experiment

It means there are two different types of the independent variable

Which aspect of manipulation is exemplified by having 7 things on the desk in one condition and 2 things on the desk in another condition?

Manipulating the quantity of the independent variable (correct)

Manipulating the type of the independent variable

Manipulating the presence of the independent variable

Manipulating the measurement of the independent variable

What is the confounding variable in the given experiment?

The color of the cereal box (C) Signup and view all the answers

Why is it important to control other variables in an experiment?

To avoid confounding variables that may affect the observed relationship (A) Signup and view all the answers

What is the purpose of random assignment in an experimental strategy?

To balance participant characteristics across different groups (B) Signup and view all the answers

In the context of the given text, what is the independent variable (IV) in the experiment?

The type of encouragement given to the children (B) Signup and view all the answers

What is the dependent variable (DV) in the experiment described in the text?

The performance of the children in the memory test (A) Signup and view all the answers

Which group of children received more candies for each correct answer according to the text?

The group receiving positive encouragement (A) Signup and view all the answers

What is the primary goal of randomization in research?

To disrupt any systematic relation between extraneous and independent variables (D) Signup and view all the answers

Which procedure is commonly used for randomization?

Coin toss (D) Signup and view all the answers

What is the name of the condition that receives the treatment or active ingredient in an experiment?

Experimental condition (D) Signup and view all the answers

Why is it important to use random assignment in research experiments?

To minimize the impact of extraneous variables on the results (A) Signup and view all the answers

What does randomization seek to prevent in research experiments?

The confounding effect of extraneous variables (A) Signup and view all the answers

What does the experimental condition refer to in a research study?

A condition that receives the active ingredient or treatment (C) Signup and view all the answers