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Chapter 2: Problem 3

Check your understanding of the experimental method by identifying the independent variable (IV) and dependent variable (DV) in the following investigations. Note that one study has two IVs and another has two DVs. You'll find the answers in Appendix A in the back of the book A researcher wants to find out how stimulus complexity and stimulus contrast (light/dark variation) affect infants' attention to stimuli. He manipulates stimulus complexity and stimulus contrast and measures how long infants stare at various stimuli. \(\mathrm{IV}\)_____________________________ \(\mathrm{DV}\)_____________________________

Short Answer

Expert verified
Answer: The independent variables are stimulus complexity and stimulus contrast, while the dependent variable is the length of time infants stare at stimuli.

Step by step solution

01

Identify the Independent Variables (IVs)

In this experiment, the researcher manipulates stimulus complexity and stimulus contrast. These are the independent variables because they can be controlled and have an impact on the dependent variable, which is the result being measured. So, we have: IV1: Stimulus complexity IV2: Stimulus contrast
02

Identify the Dependent Variables (DVs)

In this study, the researcher measures how long infants stare at various stimuli as a result of the changes in stimulus complexity and stimulus contrast. The length of time infants spend staring at the stimuli is the dependent variable, as it is being influenced by the independent variables (stimulus complexity and stimulus contrast). Thus, we have: DV: Length of time infants stare at stimuli Answer: IV1: Stimulus complexity IV2: Stimulus contrast DV: Length of time infants stare at stimuli

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Most popular questions from this chapter

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