Can you describe the study design of experimental and quasi-experimental? What is the difference? Are there any examples to relate this to?
In any quantitative experiment, we are interested in examining the effect(s) of one or more variables on one or more other variables - these variables are either dependent or independent. Independent variables are the thing(s) that are manipulated in the experiment (ie. the thing(s) we are interested in observing as having an effect) whereas dependent variables are the thing(s) we measure or register (ie. the thing(s) we wish to observe as being affected by ...
This job contrasts of experimental and quasi-experimental designs.