Practical epidemiology and biostatistics in research. IV. Putting research into operation.
نویسندگان
چکیده
As described earlier in this series, research is based on Scientific Methodology which consists of a series of steps: 1. Statement of the problem 2. Formulation of hypothesis 3. Hypothesis testing: selecting the study design 4. Data interpretation and presentation 5. Utilization of results What am I trying to find out? Stating the problem or the purpose/objective of the study is the first step in research. The major research question determines the hypothesis which in turn helps choose the study design needed to verify the hypothesis. Problem statements are issues that you are interested in questions arising from observations, ideas or problems that need answers, a gap in knowledge that needs to be filled. What do I expect will happen? A hypothesis is a theory, an expectation of what will happen, or an expected relationship between two or more variables that can be tested by further investigation. The hypothesis needs to: (i) meet the purpose of the study, (ii) be defined as precisely as possible as it both directs and guides research, determining the study design and (iii) be expressed in measurable terms.
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عنوان ژورنال:
- JPMA. The Journal of the Pakistan Medical Association
دوره 44 1 شماره
صفحات -
تاریخ انتشار 1994