How can an experiment formally be defined______________?
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Answer: A. an attempt to test a hypothesis under controlled conditions
Explanation
An experiment is formally defined as an attempt to test a hypothesis under rigorously controlled laboratory conditions. Researchers actively manipulate independent variables while holding confounding factors constant to observe effects on dependent variables. This scientific method allows investigators to establish clear cause-and-effect relationships between variables of interest. Experimental design requires random assignment of participants to experimental and control groups to eliminate bias. Laboratory controls ensure that extraneous environmental variables do not distort the measured outcomes of the study. Replication of experiments by independent researchers is essential to verify the reliability of scientific findings.
Conducting research in a laboratory describes the setting, but experiments can occasionally occur in controlled field environments. Trying out new methods describes exploratory research rather than the formal hypothesis-testing nature of an experiment. Deceiving participants is an ethical concern in some psychological studies, not the fundamental definition of an experiment.
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