When to choose quantitative research over qualitative research?
Posted: Sun Dec 22, 2024 9:04 am
Quantitative surveys are primarily used to find out the answer to the question "how many?". They are conducted on large samples of respondents, representative of the population under study. A wide range of statistical methods are used both for sampling and for calculating and interpreting the results.
An important part of planning a quantitative survey is the appropriate selection of the sample size. When determining the sample size, factors such as the range of variability of the phenomenon code phone number philippines measured in the population, the size of the population being studied, or the size of the possible measurement error that is acceptable to us must be taken into account. Quantitative surveys are usually carried out using questionnaires.
They consist of collecting the answers to questions in a questionnaire prepared for a predetermined number of respondents. From the results of a survey of this type, we can estimate the frequency with which a certain phenomenon or opinion occurs in the population as a whole. However, the sample surveyed will never perfectly represent the opinion held by the entire population and, therefore, when analyzing the results, we must bear in mind that our result is very often loaded with statistical errors.
Data obtained from quantitative surveys of different groups are easily comparable and can be easily visualised using graphs. The most popular forms of quantitative research are: CATI - computer-assisted telephone interviews, CAWI - interviews conducted over the Internet using a questionnaire given to respondents, PAPI and CAPI - face-to-face interviews. Quantitative research is often useful for determining market shares, the demand for a particular product or the incidence of a phenomenon.
An important part of planning a quantitative survey is the appropriate selection of the sample size. When determining the sample size, factors such as the range of variability of the phenomenon code phone number philippines measured in the population, the size of the population being studied, or the size of the possible measurement error that is acceptable to us must be taken into account. Quantitative surveys are usually carried out using questionnaires.
They consist of collecting the answers to questions in a questionnaire prepared for a predetermined number of respondents. From the results of a survey of this type, we can estimate the frequency with which a certain phenomenon or opinion occurs in the population as a whole. However, the sample surveyed will never perfectly represent the opinion held by the entire population and, therefore, when analyzing the results, we must bear in mind that our result is very often loaded with statistical errors.
Data obtained from quantitative surveys of different groups are easily comparable and can be easily visualised using graphs. The most popular forms of quantitative research are: CATI - computer-assisted telephone interviews, CAWI - interviews conducted over the Internet using a questionnaire given to respondents, PAPI and CAPI - face-to-face interviews. Quantitative research is often useful for determining market shares, the demand for a particular product or the incidence of a phenomenon.