A research proposal is another kind of a complicated academic writing you may be asked to complete pursuing a degree. It differs greatly from any other dissertation or thesis sample, as it is a practical proposal on some scientific investigation. It may even be of greater importance to your academia than any other paper you have submitted before. The tricky part in writing your research proposal paper is that it has to be 100% unique and original. No one will analyze a partially plagiarized research proposal, as it is supposed to promote a good start to your future career. Thus, you have to make sure you paper is grammatically flawless, well structured, and plagiarism free.
Snowball sampling may also be viewed as an effective sampling strategy from a perspective of research design and the choice of research methods. Whilst the use of quantitative research designs, surveys methods, and statistical analyses are geared towards the use of probability-based sampling techniques that make it possible to make statistical inferences from a sample that can be generalised to a population [see Probability sampling ], if we were to use such a research design to compare students who were frequent as opposed to causal drug users, it could actually lead to significant sampling bias. Taking this example, imagine that we were to conduct our survey during morning lecturers at a university. Whilst stereotypical, we may expect that a larger proportion of these frequent drug users did not show up to the lectures compared to the causal users. If this were the case, and we would likely not know if it was or not, the sample that took part in the survey could include an over-representation of causal drug users compared with frequent drug users. This would lead to sampling bias. Whilst it could be said that such as criticism is more about research design than sampling strategy, the point of this example is to highlight that sometimes a statistically inferior sampling design can result in a more representative sample.