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Features of Quantitative Research.

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All aspects of the study are carefully designed before data is collected. Researcher is the data gathering instrument.

Researcher uses tools, such as questionnaires or equipment to collect numerical data. Data is in the form of words, pictures or objects. Data is in the form of numbers and statistics. Qualitative data is more 'rich', time consuming, and less able to be generalized. Quantitative data is more efficient, able to test hypotheses, but may miss contextual detail.

Researcher tends to become subjectively immersed in the subject matter. Researcher tends to remain objectively separated from the subject matter. Qualitative versus Quantitative Research: Key Points in a Classic Debate. James Neill Last updated: Everything is either 1 or 0" - Fred Kerlinger. The aim is a complete, detailed description.

And there is no control if the participant has understood the questions correctly, or what his underlying motivation is. Quantitative versus qualitative research methods Let me summarize the key features of both methods: Qualitative research tries to understand the context and has a holistic approach. The researcher does not exactly know what he is looking for.

The results are insights in the form of Words, quotes or pictures. The results are a interpretation of the researcher and the data is unstructured. On the other hand, quantitative research tries to classify, count or measure. The researcher knows in advance exactly what he is looking for.

The results are measurements, in most cases numbers. Quantitative research has the approach to proof a certain question and is therefore structured.

Qualitative research methods generate insights that are always subjective and an interpretation of the person who is conducting the research. The results are not replicable and not statistical correct, but can provide valuable insights for a human centered design process.

On the other hand quantitative research methods are a good instrument a later stage of the process to validate prototypes or measure improvements. To say that quantitative research methods are therefore objective and qualitative methods are subjective, is an over simplification of both methods and is not correct.

It is very important to understand that both methods do not work against each other. How many people to ask? In general, it depends on the research method, the approach and the time that is available. Jackob Nielsen, for example, says that five persons in a qualitative study are in most cases enough for a qualitative survey about human centered design questions.

Nielsen, He argues that the first interviewed person provides often the most insights. The second person will provide similar insights and will add some new insights to the research and so on. Most important is the fact, that asking no people in the design process gives no insights to the designer, and the more persons you add, the insights are not getting linear more.

Although mixed methods research is not new, it is a movement that has arisen in response to the currents of qualitative and quantitative research. Designers sometimes argue that tracked datasets are soulless and not a valid input. But when we can combine personal insights gained by qualitative research and combine it with quantitative behavioral data, it will enable designers to ask smarter questions in the design process, or to cite Seemann: Mixing both methods, and adding behavioral data from sensors, we can create a new dimension in understanding people better, by analyzing what people actually do and how they behave, instead of asking them on how they think and feel.

Because what people say, think, and feel can be contradictory to what they actually do.


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The key features of quantitative research are: It is usually based upon numerical measurements and thus tends to use numbers and statistical methods as key research indicators and tools. It tends to be associated with analysis.

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Quantitative research involves analysis of numerical data. The strengths and weaknesses of qualitative and quantitative research are a perennial, hot debate, especially in the social sciences.

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Features of Quantitative Research. According to Coolican (), quantification can be defined as the process of measuring on some numerical basis. Quantitative research tends . An Overview of Quantitative Research. This modules provides a basic overview of quantitative research, including its key characteristics and advantages. Learning Objectives: Define quantitative research. Describe the uses of quantitative research design. Provide examples of when quantitative research methodology should be used.

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What are quantitative methods of research? What is its definition, when are these methods used and what are its characteristics? This article defines quantitative methods and lists seven characteristics that discriminate these research methods from qualitative research approaches. This article describes the key features of qualitative research and the advantages that such features add to existing quantitative research approaches in the study of infection control. We address the goal of qualitative research, the nature of the research process, sampling, data collection and analysis, validity, generalizability of findings.