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Measuring up the methodological considerations of quantitative research

Liz Halcomb highlights the areas of discussion and debate in quantitative methods of research and introduces four Nurse Researcher articles relating to the subject
Measuring research

Liz Halcomb highlights the areas of discussion and debate in quantitative methods of research and introduces four Nurse Researcher articles relating to the subject

Unlike qualitative research that relies on participants’ voices, narrative data and people’s experiences, quantitative research uses statistical techniques to undertake empirical investigations of phenomena. Quantitative research can be broadly classified into experimental and non-experimental research.

In experimental research, an intervention (independent variable) is applied to evaluate what impact it has on the phenomena (dependant variable). In a randomised controlled trial, this intervention will be applied to a randomly selected intervention group, while the control group do not receive the intervention. However, in a quasi-randomised trial either the independent variable will not be manipulated or the allocation to the intervention and control group is not randomised.

In contrast, in non-experimental research, there is no intervention and the

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