The discussion of quantitative research should describe on the basis of hypothesis and justify with the previous evidences. Sometimes the confusion is arising which one is correct or which one is wrong.
I think the start point of any quantitative research should based on theories. Theory becomes stronger as more supporting evidence is gathered; and it provides a context for predictions. In addition, theory allows the researcher to make links between the abstract and the concrete, the theoretical and the empirical, thought statements and observational statements etc. There is a two-way relationship between theory and research. Social theory informs our understanding of issues, which, in turn, assists us in making research decisions and making sense of the world. Whereas, hypotheses are more specific than theories, which are usually predicts the relationship between two or more variables. The theories help us to understand and to analyze relationships within systems in different levels Micro-level theory seeks to explain behavior at the level of the individual or family environment (e.g. psychology, frustration, aggression hypothesis etc). Meso-level theory seeks to explain the interactions of micro-level organizations (e.g. social institutions, communities etc). Macro-level theory seeks to explain behavior at the level of large groups of people (e.g. ethnicity, class, gender etc), so it's very important in this part of research than hypothesis.
Dear Halima,
my take on the issue is rather simple: In research contexts, hypothesis are anchored in or rather "derived from" theory.
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