Examination of manipulation is a term in experimental research in social science that refers to some kind of secondary evaluation of an experiment.
Video Manipulation check
Overview
Manipulation checks are measurable variables that show what simultaneously manipulated variables affect other than the dependent variable of interest.
In experiments, an experiment manipulates several aspects of a process or task and randomly assigns subjects to different levels of manipulation ("experimental conditions"). The experiment then observes whether variations in the manipulated variables cause differences in the dependent variable. The manipulation check is targeted at the variable in addition to the desired dependent variable.
Manipulation is not intended to verify that the manipulated factor causes variation in the dependent variable. This is verified by random assignment, manipulation before the measurement of the dependent variable, and the effect statistical test of the manipulated variable on the dependent variable. Thus, the examination of failed manipulations does not deny the hypothesis that manipulation causes variation in the dependent variable.
Conversely, successful manipulation checks may help the experiment rule out the reason that manipulation may have failed to affect the dependent variable. When manipulation creates a significant difference between the experimental conditions in the second (1) dependent variable and (2) the measurable check manipulation variable, the interpretation is that (1) manipulation "causes" variation in the dependent variable ("effect") and (2) manipulation also explains variations in several other measurable variables that are more clearly theoretically expected to affect simultaneously, which helps in interpreting "cause" (that is, it only helps interpret "because" is not necessary for assert that the "cause" causes an effect).
Maps Manipulation check
See also
- Experiment design
Source of the article : Wikipedia
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