{"id":631,"date":"2022-10-24T10:50:53","date_gmt":"2022-10-24T10:50:53","guid":{"rendered":"https:\/\/www.paperpal.com\/blog\/?p=631"},"modified":"2024-02-21T08:52:56","modified_gmt":"2024-02-21T08:52:56","slug":"differences-between-qualitative-and-quantitative-research","status":"publish","type":"post","link":"https:\/\/paperpal.com\/blog\/press-release\/differences-between-qualitative-and-quantitative-research","title":{"rendered":"Differences Between Qualitative and Quantitative Research"},"content":{"rendered":"
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What are qualitative and quantitative research methods1,2<\/sup><\/strong><\/p>\n\n\n\n

While conducting research for a study, authors undertake different types of research methods depending on their research question and the study type. These research methods are of two types\u2014qualitative and quantitative.<\/p>\n\n\n\n

Qualitative research is the process of collecting, analyzing, and interpreting non-numerical data. This method uses reasoning and focuses on the validity rather than the reliability of the results. The observations of this research are expressed in words and help in understanding individuals\u2019 subjective perception about an event, condition, or subject. This type of research is exploratory and is used to generate hypotheses or theories from data. Qualitative data are non-numerical, in the forms of text, videos, photographs, and audio recordings.<\/p>\n\n\n\n

Quantitative research is the process of collecting and analyzing numerical data to describe, predict, and control the variables of interest. The results are expressed in numbers and graphs and help in testing the causal relationships between variables, making predictions, and generalizing results. This research is used for testing a theory and then approving or rejecting it based on the results.<\/p>\n\n\n\n

Before starting their research process, researchers should understand the different types of research methods to decide the best method for their study type. Most studies use either the quantitative or qualitative method, but in some cases a mixed methods approach may be more useful.<\/p>\n\n\n\n

Differences between qualitative and quantitative research1<\/sup><\/strong><\/p>\n\n\n\n

The following table lists a few important differences between qualitative and quantitative research.<\/p>\n\n\n\n

Parameter<\/strong><\/td>Qualitative research<\/strong><\/td>Quantitative research<\/strong><\/td><\/tr>
Purpose and design<\/td>Explore ideas, formulate hypotheses; more subjective<\/td>Test theories and hypotheses, discover causal relationships; measurable and more structured<\/td><\/tr>
Data collection method<\/td>Semi-structured interviews\/surveys with open-ended questions, document study\/literature reviews, focus groups, case study research, ethnography<\/td>Experiments, controlled observations, questionnaires and surveys with a rating scale or closed-ended questions. The methods can be experimental, quasi-experimental, descriptive, or correlational.<\/td><\/tr>
Data analysis<\/td>Content analysis (determine presence of certain words\/concepts in texts), grounded theory (hypothesis creation by data collection and analysis), thematic analysis (identify important themes\/patterns in data and use these to address an issue)<\/td>Statistical analysis using applications such as Excel, SPSS, R<\/td><\/tr>
Sample size<\/td>Small<\/td>Large<\/td><\/tr>
Example<\/td>A company organizing focus groups or one-to-one interviews to understand customers\u2019 (subjective) opinions about a specific product, based on which the company can modify their marketing strategy<\/td>Customer satisfaction surveys sent out by companies. Customers are asked to rate their experience on a rating scale of 1 to 5<\/td><\/tr><\/tbody><\/table><\/div><\/figure>\n\n\n\n

Data collection methods<\/strong>3<\/sup><\/p>\n\n\n\n

Qualitative research<\/p>\n\n\n\n

  1. Interviews<\/em>: This helps understand a respondent\u2019s subjective opinion and experience pertaining to a specific topic or event. Semi-structured interviews, which have open-ended questions (where the respondents can answer more than just \u201cyes\u201d or \u201cno\u201d), are commonly used.<\/li>
  2. Document study<\/em>\/Literature review<\/em>: Researchers\u2019 review of written materials such as archives, annual reports, research articles, guidelines, policy documents, etc.<\/li>
  3. Focus groups<\/em>: Usually include a small sample of about 6-8 people and a moderator, to understand the participants\u2019 opinion on a given topic.<\/li>
  4. Ethnography<\/em>: Data are collected through observations and interviews and then analyzed to understand how society and individuals function.<\/li><\/ol>\n\n\n\n

    Quantitative research<\/p>\n\n\n\n

    1. Controlled observations<\/em>: These are observations made under standard and systematic conditions rather than casual or incidental conditions.4<\/sup> They are conducted in a closed space where the researcher decides the participants and conditions under which the observations will be carried out.<\/li>
    2. Interviews\/surveys<\/em>: These interviews are structured and restricted to closed-ended questions where the respondents must strictly respond with a \u201cyes\u201d or \u201cno\u201d answer. Alternatively, a rating scale may be provided from which the respondents would need to choose a specific rating.<\/li><\/ol>\n\n\n\n
      \"\"<\/a><\/figure>\n\n\n\n

      The quantitative data collection methods can be of the following designs5<\/sup>:<\/p>\n\n\n\n