__________ studies differ from correlational research only in that groups of participants are carefully chosen to ensure that their characteristics are as much alike as possible.

Question

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This is because natural, or quasi-, experiments involve manipulating an independent variable within naturally occurring groups or settings, which are carefully chosen to ensure that their characteristics are as much alike as possible, making them similar to experimental studies where the researcher manipulates the independent variable. Field experiments involve manipulating the independent variable in a natural setting, laboratory experiments are conducted in a controlled environment, and observational studies involve observing behavior without manipulating any variables.

__________ Studies Differ from Correlational Research Only in That Groups