Summary
Highlights
The video introduces various ways to obtain and analyze data, such as surveys, focus groups, interviews, and questionnaires. It highlights that research methods are specific procedures for collecting and analyzing data and are integral to research design. This is a continuation of the previous lesson on data gathering.
When planning research methods, key decisions include how to collect data (qualitative vs. quantitative, primary vs. secondary, descriptive vs. experimental) and how to analyze it. Quantitative data uses statistical analysis, while qualitative data uses methods like thematic analysis to interpret patterns.
Data is defined as information collected to answer research questions. The choice between quantitative (numbers) and qualitative (words, descriptors) data depends on the desired knowledge. Quantitative data is good for large collections and reproducible knowledge but needs statistical training and larger samples. Qualitative data is flexible, can be done with small samples, but is difficult to standardize or generalize statistically.
Primary data is collected by the researcher, often through observations and experiments. Secondary data is information already collected by others, such as census data or enrollment numbers. If exploring novel research questions, primary data is essential.
Observation is a primary method that can be either qualitative or quantitative. It helps understand how something occurs in its natural setting, studying situational dynamics, frequency counts of behaviors, and can provide both narrative and numerical data.
Interviews and focus groups are primary, qualitative methods. Interviews (one-on-one) can be formal or informal, structured or semi-structured, and aim for in-depth understanding. Focus groups involve a group of people with similar characteristics to gather combined perspectives and opinions, with responses often analyzed thematically.
Literature review is a secondary method that can be quantitative or qualitative, used to situate research in existing work or evaluate trends. Ethnography, oral history, and case studies involve studying single phenomena, examining people in their natural settings, and using a combination of techniques like observation, interviews, and surveys for a holistic approach.
The video concludes the discussion on gathering data. The next lesson vlog will cover organizing data using appropriate tables, charts, diagrams, line graphs, and pictures.
Surveys are a primary, quantitative method used to understand general characteristics of a population, often using questionnaires with Likert scales. Responses are generally easier to analyze quantitatively.
Experiments are a primary, quantitative method used to test cause-and-effect relationships between variables, typically in scientific research.