15 Questions
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
What does it mean for the independent variable to have two levels?
It means there are two different quantities 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
What is the confounding variable in the given experiment?
The color of the cereal box
Why is it important to control other variables in an experiment?
To avoid confounding variables that may affect the observed relationship
What is the purpose of random assignment in an experimental strategy?
To balance participant characteristics across different groups
In the context of the given text, what is the independent variable (IV) in the experiment?
The type of encouragement given to the children
What is the dependent variable (DV) in the experiment described in the text?
The performance of the children in the memory test
Which group of children received more candies for each correct answer according to the text?
The group receiving positive encouragement
What is the primary goal of randomization in research?
To disrupt any systematic relation between extraneous and independent variables
Which procedure is commonly used for randomization?
Coin toss
What is the name of the condition that receives the treatment or active ingredient in an experiment?
Experimental condition
Why is it important to use random assignment in research experiments?
To minimize the impact of extraneous variables on the results
What does randomization seek to prevent in research experiments?
The confounding effect of extraneous variables
What does the experimental condition refer to in a research study?
A condition that receives the active ingredient or treatment
This quiz covers the concept of confounding variables and their impact on experiments, using the example of the color of cereal boxes and its systematic variation with the independent variable. Test your understanding of how confounding variables can affect the interpretation of experimental results.
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