|Experimental Research :||
A researcher working within this methodology
creates an environment in which to observe and interpret the results of a
research question. A key element in experimental research is that
participants in a study are randomly assigned to groups.
In an attempt to create a causal model (i.e., to discover the causal
origin of a particular phenomenon), groups are treated differently and
measurements are conducted to determine if different treatments appear
to lead to different effects.|
The extent to which research findings and conclusions from a study conducted on a sample population can be applied to the population at large.