At an early point in the planning process you will need to make a final decision about what you want to demonstrate or to prove in your essay. Once you are clear about this, you should try to express your thoughts as a single statement. Such a statement is often referred to as the
thesis statement.
If you have been asked to debate an issue or to discuss a particular point of view, your thesis statement will take the form of a
claim or
proposition. In the case of the Nursing Practice essay question cited earlier you might, for example, wish to claim that you support the view that "
the only way in which nursing practice can advance will be to encroach into some areas of medical practice." Alternatively, you might wish to disagree with this view, or to adopt a more neutral position, in which case you might claim that the issue is a very complex one that has no clear cut answer. Whichever of the three approaches you take,
you will be expected to provide evidence to support the claim you are making, and to defend your claim against counter claims.
If, on the other hand, you were asked to examine why the transition from school to university is difficult for many students, your thesis might be "
There are three main reasons why students have difficulty in making the transition from school to university." You would then be expected to identify the three reasons (ie. the need to adapt to unfamiliar styles of teaching and learning, being under prepared for the course of study being undertaken, isolation from friends and family), and to discuss each of these reasons in detail in the body of your essay. In doing so you would present facts and opinions supported by evidence drawn from research studies.
Types of evidence The evidence you provide in support of your thesis statement, or as part of your discussion of the issues it raises, can take a number of forms. It may consist of:
- reasons and arguments based on expert opinion and research findings;
- examples and case studies;
- facts and statistics.
Criteria for judging evidence Not all evidence, though, is reliable, or of equal value. Statistics, as we know, can lie, research findings can be erroneous, or based on questionable methodology, and opinions can be subject to personal and cultural biases. Even so called facts can be influenced by perception. Before choosing evidence you should, therefore, make sure that you assess its quality. You can do this by asking the following questions:
- Is it accurate?
- Is it relevant?
- Is it representative?
- Is it adequate?
- Does it contain any biases?