Research
methodology
25
CHAPTER SIX
RESEARCH METHODS
6.1 Learning objectives
After completing this chapter, the student should be able to
:
1. Identify the pertinent questions to consider when developing the methodology of a
research
proposal
2. Describe and understand the various components of the methods section in a
research proposal
3. Explain the cyclical nature of the different steps in designing the methodology.
6.2 Introduction
In the previous chapters we have
dealt with the identification, selection, analysis and
statement of the problem. The importance of literature review and formulation of study
objectives were also emphasized. Now we must decide exactly how we are going to achieve
our stated objectives. That is, what new data do we need to shed
light on the problem we
have selected and how we are going to collect and process these data. The major issues that
constitute the "methods section" of a research proposal will be dealt in the sections that
follow.
6.3
Types of study designs
A study design is the process that guides
researchers on how to collect, analyze and interpret
observations. It is a
logical model that guides the investigator in the various stages of the
research.
Several classifications of
study types are possible, depending on what research strategies
are used.
1.
Non-intervention (Observational) studies in which the researcher just observes
and analyses researchable objects or situations but does not intervene; and
Research methodology
26
2.
Intervention studies in which the researcher manipulates objects or situations and
measures the outcome of his manipulations (e.g., by implementing intensive health
education and measuring the improvement in immunisation rates.)
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