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Differentiate between quasi and experimental methods.

Answer» In a true\xa0experiment, participants are randomly assigned to either\xa0the\xa0treatment or\xa0the\xa0control group, whereas they are not assigned randomly in a\xa0quasi-experiment. ... Thus,\xa0the\xa0researcher must try to statistically control for as many of these\xa0differences\xa0as possible.\xa0Quasi-experimental\xa0research involves the manipulation of an independent variable without the random assignment of participants to conditions or orders of conditions. Among the important\xa0types\xa0are nonequivalent groups\xa0designs, pretest-posttest, and interrupted time-series\xa0designs.\xa0In a true\xa0experiment, each participant who volunteered would have an equal chance of being assigned to any of the three groups.\xa0Quasi-experiments\xa0are employed when the researcher is interested in independent variables that cannot be randomly assigned.


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