Qualitative vs Quantitative vs Mixed Methods Research: How To Choose Research Methodology

Qualitative, Quantitative, and Mixed Methods Research Methodologies

Key Concepts: Qualitative research, quantitative research, mixed methods research, exploratory research, confirmatory research, research aims, research questions, research design, methodology, data collection methods, data analysis techniques, disciplinary norms, practicalities, constraints.

Introduction

The video provides an overview of qualitative, quantitative, and mixed methods research methodologies, explaining their core differences and how to choose the appropriate approach for a dissertation, thesis, or research project. It emphasizes that these methodologies are overarching research strategies that influence the selection of specific data collection and analysis techniques.

Qualitative vs. Quantitative Research

• Qualitative Research:
  • Utilizes non-numerical data, focusing on words, concepts, perceptions, and ideas.
  • Investigates the "softer side" of things, exploring people's perceptions, ideas, and feelings.
  • Subjective in nature, aiming for a deeper understanding of the complexity of a situation.
  • Employs an inductive approach, developing hypotheses and theories from the ground up.
  • Example: Exploring factors influencing customers' laundry detergent choices through interviews and focus groups.
• Quantitative Research:
  • Utilizes numerical data and statistics.
  • Measures differences between groups and/or relationships between variables.
  • Tests hypotheses.
  • Objective in nature, taking a deductive approach.
  • Example: Measuring the percentage of people prioritizing price when choosing laundry detergent and how this varies across demographics.

Mixed Methods Research

• Combines both qualitative and quantitative data.
• Often uses qualitative research to explore a situation and develop hypotheses, then uses quantitative methods to test them.
• Can also use quantitative research to get a view of the bigger picture (the "what") and then use qualitative methods to explore the underlying reasons (the "why").
• Qualitative and quantitative research are not at odds with each other.
• It is recommended that first-time researchers stick to a mono method approach, either qual or quant unless the nature of their study genuinely warrants a mixed methods approach.

Choosing the Right Methodological Approach

Selecting the appropriate research methodology involves considering three key factors:

1. Nature of Research Aims and Research Questions:
   • Research aims can be exploratory, confirmatory, or a mix of both.
   • Exploratory research tends to adopt a qualitative approach.
   • Confirmatory research tends to use a quantitative approach.
   • Research combining both exploratory and confirmatory aims typically utilizes a mixed methods approach.
   • Example: Understanding war veterans' perspectives on political matters (qualitative) vs. assessing the distribution of political leanings among veterans (quantitative).
   • Alignment between research aims, research questions, and methodology is crucial.
2. Methodological Approaches in Existing Literature (Disciplinary Norms):
   • Reviewing approaches used by other researchers in the field and studies with similar aims.
   • Disciplines often have commonly accepted methodological approaches.
   • Piggybacking on data collection techniques developed by experienced researchers (e.g., using tried and tested survey scales with high Cronbach's alphas found in journal article appendices).
   • The methodology needs to align with your research aims and research questions.
3. Practicalities and Constraints:
   • Balancing the theoretically best research design with what is practical given constraints.
   • Constraints to consider:
     • Data Access: What data is needed and how likely is access? Ethical clearance requirements?
     • Time: Time needed for interviews, focus groups, or survey responses. Longitudinal research timelines?
     • Money: Financial resources for participation incentives, travel, facilities, etc.
     • Equipment and Software: Equipment for data collection (lab equipment, recording equipment). Software for data analysis.
     • Knowledge and Skills: Competence in data collection and analysis methods. Backup plan if skills cannot be developed.

Conclusion

Choosing the right research methodology requires careful consideration of research aims, disciplinary norms, and practical constraints. Striking a balance between research rigor and practicality is essential for a successful research project.