RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE
PSYCHOLOGY RESEARCH AND ETHICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Quasi experiments take place in naturalistic environments; true experiments take place in laboratories
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In a quasi experiment, participants have a trait that determines which condition they are in; in a true experiment, they are randomly allocated.
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Quasi experiments do not have controlled variables.
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Quasi experiments are cross-sectional; true experiments are longitudinal.
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Detailed explanation-1: -Like a true experiment, a quasi-experimental design aims to establish a cause-and-effect relationship between an independent and dependent variable. However, unlike a true experiment, a quasi-experiment does not rely on random assignment. Instead, subjects are assigned to groups based on non-random criteria.
Detailed explanation-2: -a true experiment is one in which the experimenter has complete control over the who, what, when, where, and how of the experiment. A quasi experiment, by contrast, does not permit the experimenter to control the assignment of subjects to conditions.
Detailed explanation-3: -In quasi-experimental designs, the experimenter can still manipulate the value of the independent variable, even though the groups to be compared are already established. In nonexperimental designs, the groups already exist and the experimenter cannot or does not attempt to manipulate an independent variable.
Detailed explanation-4: -What is a Quasi-Experiment? The definition of a quasi-experiment is an experiment where participants cannot be randomly assigned to the independent variable. In a true experiment, the independent variable is manipulated by the researcher and participants are assigned by chance to each level of that variable.
Detailed explanation-5: -How are Quasi-experiments different from correlational studies? Quasi-experiments usually select only a certain range of values of an independent variable, while a typical correlational study measures all available values of an independent variable.