PSY 250 Chapter Notes - Chapter 7: Naturalistic Observation, Random Assignment, Intravenous Therapy
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Define nonexperimental research, distinguish it clearly from experimental research, and give several examples. Explain when a researcher might choose to conduct nonexperimental. Nonexperimental research research that lacks the manipulation of an independent research as opposed to experimental research. variable, random assignment of participants to conditions or orders of conditions, or both. Single-variable research research that is nonexperimental because it focuses on a single variable rather than a statistical relationship between two variables. Correlational research the researcher measures the two variables of interest with little or no attempt to control extraneous variables and then asses the relationship between them. Quasi-experimental research the researcher manipulates an independent variable but does not randomly assign participants to conditions or orders of conditions. Qualitative research data are usually non-numerical and are analyzed using non-statistical techniques. Explain why a researcher might choose to conduct correlational research rather than experimental research or another type of nonexperimental.
