Answer:
Prescriptive
Explanation:
The word "prescriptive" refers to something prescribed or suggested or how something ought to be.
Thus, a prescriptive theory refers to one which states how people and things ought to be against how they actually stand and are.
Such theories prescribe and suggest guidelines as to what should be done or what needs to be done so as to accomplish a desired objective or a goal.
In the given case, the researcher came up with a model suggesting several processes to be employed by effective leaders. Here, the model is not based upon experiences but on study and research.
Thus, such a theory would be termed as "prescriptive" or suggestive in nature.
