Quasi-experiment is a research design having some but not all of the characteristics of a true experiment. The element most frequently missing is random...
sociologyindex.com/quasi_experiment.htm sociologyindex.com/quasi_experiment.htm
A quasi-experiment is a scientific research method primarily used in the social sciences. "Quasi" means likeness or resembling, so therefore...
en.wikipedia.org/wiki/Quasi-experimental_design en.wikipedia.org/wiki/Quasi-experimental_design
A natural or Quasi-experiment is a naturally occurring instance of an observable phenomena which approximate or duplicate the properties of a controlled...
en.wikipedia.org/wiki/Natural_experiment en.wikipedia.org/wiki/Natural_experiment
A quasi-experimental design is one that looks a bit like an experimental design but lacks the key ingredient -- random assignment. My mentor, Don Campbell, often referred to them as "queasy" experiments because they give the experimental purists a queasy feeling.
www.socialresearchmethods.net/kb/quasiexp.htm www.socialresearchmethods.net/kb/quasiexp.htm
The first design is a posttest-only randomized experiment. You can tell it's a randomized experiment because it has an R at the beginning of each line, indicating random assignment. The second design is a pre-post nonequivalent groups quasi-experiment.
www.socialresearchmethods.net/kb/destypes.htm
Do we still have an experiment? Not a true experiment in the strictest scientific sense of the term, but we can have a quasi-experiment, an attempt to uncover a causal relationship, even though the researcher cannot control all the factors that might affect the outcome.
writing.colostate.edu/guides/research/experiment/pop3e.... writing.colostate.edu/guides/research/experiment/pop3e.cfm
Conducting the experiment To read about experimental and quasi-experimental research, click on the items below: Basic Concepts of Experimental and Quasi-experimental Research...
writing.colostate.edu/guides/research/experiment/ writing.colostate.edu/guides/research/experiment/
Encyclopedia: Experiment
Source
In the scientific method, an experiment (Latin: ex- periri, "of (or from) trying") is a set of observations performed in the context of solving a particular problem or question, to retain or falsify...
en.wikipedia.org/wiki/Experiment
Quasi-experimental design involves selecting groups, upon which a variable is tested, without any random pre-selection processes. A quasi experiment constructed to analyze the effects of different educational programs on two groups of children, for example, might generate results that show that one program is more...
www.experiment-resources.com/quasi-experimental-design.... www.experiment-resources.com/quasi-experimental-design.html
David P. Biros, Jachin Sakamoto, Joey F. George, Mark Adkins, John Kruse, Judee K. Burgoon, Jay F. Nunamaker Jr., "A Quasi-experiment to Determine the Impact of a Computer Based Deception Detection Training System: The Use of Agent99 Trainer in the U.S. Military," Hawaii International Conference on System Sciences, vol.
doi.ieeecomputersociety.org/10.1109/HICSS.2005.42