Quantitative research

quantitativequantitative methodsquantitative dataquantitativelyquantitative methodquantitative analysisquantitative studyquantitative approachQuantitative approachesquantitative assessment
In natural and social sciences, and sometimes in other fields, quantitative research is the systematic empirical investigation of observable phenomena via statistical, mathematical, or computational techniques.wikipedia
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Social science

social sciencessocial scientistsocial
In natural and social sciences, and sometimes in other fields, quantitative research is the systematic empirical investigation of observable phenomena via statistical, mathematical, or computational techniques.
In modern academic practice, researchers are often eclectic, using multiple methodologies (for instance, by combining both quantitative and qualitative research).

Empirical research

empiricalempirical studiesempirical method
In natural and social sciences, and sometimes in other fields, quantitative research is the systematic empirical investigation of observable phenomena via statistical, mathematical, or computational techniques.
Empirical evidence (the record of one's direct observations or experiences) can be analyzed quantitatively or qualitatively. Quantifying the evidence or making sense of it in qualitative form, a researcher can answer empirical questions, which should be clearly defined and answerable with the evidence collected (usually called data).

Measurement

measuremeasuringmeasurements
The process of measurement is central to quantitative research because it provides the fundamental connection between empirical observation and mathematical expression of quantitative relationships.
Measurement is a cornerstone of trade, science, technology, and quantitative research in many disciplines.

Observation

observerobservationsobserved
The process of measurement is central to quantitative research because it provides the fundamental connection between empirical observation and mathematical expression of quantitative relationships.
Observations can be qualitative, that is, only the absence or presence of a property is noted, or quantitative if a numerical value is attached to the observed phenomenon by counting or measuring.

Qualitative research

qualitativequalitative methodsqualitative data analysis
Qualitative research, on the other hand, inquires deeply into specific experiences, with the intention of describing and exploring meaning through text, narrative, or visual-based data, by developing themes exclusive to that set of participants. In the social sciences, the term relates to empirical methods originating in both philosophical positivism and the history of statistics, in contrast with qualitative research methods.
Quantitative methods are, therefore, needed to seek mathematical evidence and justification for such hypotheses for further research.

Sociology

sociologistsociologicalsociologists
Quantitative research is widely used in psychology, economics, demography, sociology, marketing, community health, health & human development, gender studies, and political science; and less frequently in anthropology and history.
Social researchers draw upon a variety of qualitative and quantitative techniques.

Descriptive statistics

descriptivedescriptive statisticstatistics
Quantitative data is any data that is in numerical form such as statistics, percentages, etc. The researcher analyses the data with the help of statistics and hopes the numbers will yield an unbiased result that can be generalized to some larger population.
Such summaries may be either quantitative, i.e. summary statistics, or visual, i.e. simple-to-understand graphs.

Marketing

marketermarketedmarketing campaign
Quantitative research is widely used in psychology, economics, demography, sociology, marketing, community health, health & human development, gender studies, and political science; and less frequently in anthropology and history.
Marketing researchers use statistical methods (such as quantitative research, qualitative research, hypothesis tests, Chi-square tests, linear regression, correlation coefficients, frequency distributions, Poisson and binomial distributions, etc.) to interpret their findings and convert data into information.

Scientific method

scientific researchscientificmethod
Quantitative research is generally closely affiliated with ideas from 'the scientific method', which can include:

Market research

researchmarketmarket survey
Market-research techniques encompass both qualitative techniques such as focus groups, in-depth interviews, and ethnography, as well as quantitative techniques such as customer surveys, and analysis of secondary data.

Positivism

positivistpositivisticpositivists
In the social sciences, the term relates to empirical methods originating in both philosophical positivism and the history of statistics, in contrast with qualitative research methods.
Positivism in the social sciences is usually characterized by quantitative approaches and the proposition of quasi-absolute laws.

Survey methodology

surveysurveysstatistical survey
Polls about public opinion, public-health surveys, market-research surveys, government surveys and censuses are all examples of quantitative research that use survey methodology to answer questions about a population.

Natural science

natural sciencesnaturalnatural scientist
In natural and social sciences, and sometimes in other fields, quantitative research is the systematic empirical investigation of observable phenomena via statistical, mathematical, or computational techniques.

Phenomenon

phenomenaphenomenalphysical phenomena
In natural and social sciences, and sometimes in other fields, quantitative research is the systematic empirical investigation of observable phenomena via statistical, mathematical, or computational techniques.

Mathematical model

mathematical modelingmodelmathematical models
The objective of quantitative research is to develop and employ mathematical models, theories, and hypotheses pertaining to phenomena.

Scientific theory

theoryscientific theoriestheories
The objective of quantitative research is to develop and employ mathematical models, theories, and hypotheses pertaining to phenomena.

Hypothesis

hypotheseshypotheticalhypothesized
The objective of quantitative research is to develop and employ mathematical models, theories, and hypotheses pertaining to phenomena.

Empirical evidence

empiricala posterioriempirical data
The process of measurement is central to quantitative research because it provides the fundamental connection between empirical observation and mathematical expression of quantitative relationships.

Bias (statistics)

biasbiasedstatistical bias
Quantitative data is any data that is in numerical form such as statistics, percentages, etc. The researcher analyses the data with the help of statistics and hopes the numbers will yield an unbiased result that can be generalized to some larger population.

Psychology

psychologicalpsychologistpsychologists
Quantitative research is widely used in psychology, economics, demography, sociology, marketing, community health, health & human development, gender studies, and political science; and less frequently in anthropology and history.

Economics

economiceconomisteconomic theory
Quantitative research is widely used in psychology, economics, demography, sociology, marketing, community health, health & human development, gender studies, and political science; and less frequently in anthropology and history.

Demography

demographicdemographicsdemographer
Quantitative research is widely used in psychology, economics, demography, sociology, marketing, community health, health & human development, gender studies, and political science; and less frequently in anthropology and history.

Political science

political scientistPolitical Sciencespolitical analyst
Quantitative research is widely used in psychology, economics, demography, sociology, marketing, community health, health & human development, gender studies, and political science; and less frequently in anthropology and history.