3.2 Research Nature
The research natures can be divided into three types which are
descriptive, exploratory or explanatory. In a descriptive study, a new
perspective or point of view is used for analysing a new concept, in
exploratory research the new perspectives about an existing concept are applied
to refine previous theories and explanatory studies are carried out to solve
some pre-existing problems. In the present research, the researcher has used
the explanatory study nature for improving the impacts that the revenue
generation in exports can have on the economic growth and wellbeing of the
residents of Chad.
3.3 Time Horizon
There are two kinds of research designs in terms of time
horizon; longitudinal or cross-sectional.
In longitudinal studies, there are two phases which are used
to measure the impacts of variables in before and after aspects of the some
phenomenon. In the cross-sectional design data is collected in a single time
frame. In this study, the researcher has used the cross-sectional design
because there was no need in terms of objectives to conduct study in phases.
3.4 Sampling and
Population
Sample is the group that has been selected as the participants
of a research from the entire population from which the data will be collected.
The data that has been collected from the sample can be used to generalize the
response for the entire population. Therefore, the selection of samples should
be a careful way.
3.4.1Sampling Unit and
Sampling frame
The unit of analysis of a research needs to be defined
accurately as it is used to indicate the level of investigation that the study
is trying to aim (Malhotra, Hall, Shaw, & Oppenheim,
2006). Research methodologies can only be developed after
determining the unit of analysis. The sampling unit is the list of participants
from whom the researcher aims to gather data for their research. The sampling
unit should be such that can reflect the perspective that is at the root of the
researcher's objectives for the research. Unit of analysis is used to determine
how the scale of research can be treated (Hair, Anderson, Tatham, & Black,
1998). The sampling unit in this research is generally a country and
specifically on Chad.
The participants for this research are from the local
population of Chad. They are all consumers of various merchandise that are used
in Chad and can reflect about the perspectives held by consumers about various
questions in the survey. The areas, locations, places, firms or industries from
where the researcher has collected the primary data are considered as the
sampling frame for the research. In the present study, the data has been
collected from the local consumers as there is no prior study conducted in this
area in the same perspective as wellfor this research.
3.4.2Sampling techniques
There are various sampling techniques that can be generally
classified as probability or random sampling and non- probability sampling.
Each participant has same chance of participation in probability sampling. Some
types of probability sampling include simple random sampling, cluster sampling
and stratified sampling. In non-probability sampling technique, however, there
is no clear purpose of selection of participants. Types of non-probability
sampling technique includes snowball sampling, purposive sampling and
convenience sampling (Taherdoost, 2016). In this research, the researcher has
appointed the use of purposive sampling technique which is employed in cases
where the required information cannot be extracted from random resources but
only from a specific group of particular individuals. Data collected from any
other respondents beyond the residents of Chad who consume export products is
meaningless, hence the deployed technique is purposive.
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