DRAWING CONCLUSIONS FROM LIMITED DATA:

You cannot read every single article, reference or book in the world. Similarly, no matter how big a survey you undertake, you cannot ask or test everyone.  So in this respect, we are always working from a limited set of data. Nonetheless, during your studies, time is always going to be limited and so you will quite frequently be making judgements and comments from a very limited set of data or ideas, sometimes judgements have to be made from just one or two texts.

Remember maps, diagrams, charts or tables should only be used to support your arguments, not to replace them and must be integrated into the points you are trying to make. Don't forget to cite the reference for your included data and be critical, where appropriate of your sources.  For example, look carefully at the size and scope of the sample data, how any graphs are scaled.  Does this alter the perception of the presented data?

Accordingly, you should always acknowledge and comment on the fact that your conclusions are drawn from limited data (better you do it than your lecturer), and provide suggestions as to suitable additional research.