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A researcher conducts an experiment to determine if a new cognitive exercise improves memory retention. They have one group practice the exercise daily while a second group does not, and then they measure both groups' memory test scores. In this study, the memory test scores represent the independent variable.
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Research Methods in Psychology - 4th American Edition @ KPU
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Example of an Experiment: Note-Taking Method and Learning Performance
Functional Relationship Between Independent and Dependent Variables
A researcher conducts a study to determine if the amount of sleep affects problem-solving skills. One group of participants is allowed to sleep for eight hours, while a second group is only allowed to sleep for four hours. The next morning, both groups are given the same set of puzzles to solve, and the researcher records how many puzzles each participant completes correctly. In this study, what is the independent variable?
Identifying Experimental Variables
Extraneous Variable
Treatment
Non-Experimental Research
Non-Manipulated Independent Variable
Operational Definition
Experimental Manipulation
Experimental Condition
Internal Validity
Manipulation Check
Null Result
In an experimental research study, how is an independent variable defined?
A researcher conducts an experiment to determine if a new cognitive exercise improves memory retention. They have one group practice the exercise daily while a second group does not, and then they measure both groups' memory test scores. In this study, the memory test scores represent the independent variable.
Match each psychology study description to the specific factor that serves as the independent variable in that research scenario.