More often than not, we tend to examine an event of interest in terms of what have caused it and, hopefully, what impact is it likely to have.
However, as we delve a little more on the cause side, it becomes obvious that it has not been a single cause that led to the event in question. Something similar happens when we carefully examine beyond the obvious consequence.
Why is it then, that we often become so happy with the finding of a single cause and a single consequence? Even more, it is not unusual to believe that a single quick fix will do for most problems.
If we extend this approach to most research endeavours, most books will lead the analyst to identify independent variables and dependent variables, when, in real life, most of them affect each other in a cyclic fashion.
I'd be happier if you convince otherwise, that would make my work a lot simpler.