What is the difference between quantitative and qualitative research?
Companies and organizations often need market research to understand what customers think, why they behave a certain way, how markets are changing, and which opportunities deserve attention.
Two of the most widely used approaches are quantitative and qualitative research.
While both can provide valuable insights, they answer different types of questions and generate different kinds of data. Quantitative research generally focuses on measurable data, patterns, relationships, and statistical analysis. Qualitative research focuses more deeply on opinions, experiences, motivations, perceptions, and the reasons behind behavior.
Understanding the difference between quantitative and qualitative research can help businesses choose the right methodology for their research objectives.
It can also help organizations determine when they should use one approach, the other, or a combination of both.
Veridata Insights provides both quantitative and qualitative market research services, helping companies and organizations select research approaches based on their specific business questions, target audiences, timelines, and objectives.
Table of Contents
- What Is Quantitative Research?
- What Is Qualitative Research?
- What Is the Difference Between Quantitative and Qualitative Research?
- Quantitative vs. Qualitative Research at a Glance
- When Should You Use Quantitative Research?
- When Should You Use Qualitative Research?
- What Are Common Quantitative Research Methods?
- What Are Common Qualitative Research Methods?
- How Are Quantitative and Qualitative Research Analyzed?
- What Are the Advantages of Quantitative Research?
- What Are the Advantages of Qualitative Research?
- What Are the Limitations of Quantitative Research?
- What Are the Limitations of Qualitative Research?
- Can You Combine Quantitative and Qualitative Research?
- How Veridata Insights Supports Quantitative and Qualitative Research
- How to Choose the Right Research Method
- FAQs About Quantitative and Qualitative Research
- Conclusion
What Is Quantitative Research?
Quantitative research is a research approach that collects and analyzes numerical data.
It is commonly used when a company wants to measure something across a defined population, identify patterns, compare groups, test hypotheses, or quantify opinions and behaviors.
Examples of quantitative research questions include:
- How satisfied are customers with a product?
- What percentage of customers recognize a brand?
- Which product feature is most important?
- How much are customers willing to pay?
- How many people are likely to purchase a product?
- Which customer segment has the highest purchase intent?
- How does satisfaction differ between customer groups?
Quantitative research frequently uses structured surveys, rating scales, multiple-choice questions, experiments, and other methods that generate data that can be analyzed statistically.
For example, a company could survey 2,000 consumers and ask them to rate their satisfaction with a product on a scale from 1 to 10.
The resulting numerical data could then be analyzed to determine overall satisfaction, differences between customer segments, relationships between variables, and other patterns.
Quantitative research is particularly useful when organizations need measurable evidence that can support comparisons and broader conclusions about a defined population.
What Is Qualitative Research?
Qualitative research focuses on understanding people’s experiences, opinions, motivations, perceptions, and behaviors in greater depth.
Rather than primarily asking respondents to select predefined answers, qualitative research often gives participants opportunities to explain their perspectives in their own words.
Common qualitative research questions include:
- Why do customers choose one product over another?
- How do people feel about a new concept?
- What concerns prevent customers from purchasing?
- How do healthcare professionals make a particular decision?
- What experiences influence customer loyalty?
- How do consumers describe a brand?
- What problems are customers experiencing that the company has not identified?
Qualitative research can involve interviews, focus groups, online communities, diaries, product testing, ethnographic research, and other methods.
Pew Research Center provides a useful example of how qualitative research can contribute to survey development. Its researchers have used focus groups and cognitive interviews to help test and refine survey questions before fielding larger production surveys.
Qualitative research can therefore be valuable not only as a standalone research method, but also as part of a broader research program.
What Is the Difference Between Quantitative and Qualitative Research?
The simplest distinction is that quantitative research generally focuses on measurement and numerical data, while qualitative research focuses on meaning, experiences, and detailed understanding.
However, the distinction is more nuanced than simply “numbers versus words.”
A peer-reviewed study published in Quality & Quantity examined how researchers across disciplines understand quantitative and qualitative approaches. The authors found that the two approaches are often presented as separate categories, but actual research practice can involve considerable overlap and interaction between them.
The right methodology depends on the research question.
Quantitative research is often appropriate when you need to:
- Measure attitudes or behaviors
- Quantify market demand
- Estimate proportions
- Compare customer groups
- Test hypotheses
- Measure satisfaction
- Evaluate purchase intent
- Conduct segmentation
- Analyze pricing
- Track changes over time
Qualitative research is often appropriate when you need to:
- Explore motivations
- Understand experiences
- Discover unmet needs
- Explore a new topic
- Understand language customers use
- Investigate why people behave a certain way
- Evaluate reactions to concepts
- Explore complex decision-making
The distinction can be summarized as follows:
Quantitative research helps answer questions such as “how many,” “how much,” “how often,” and “how strongly.”
Qualitative research helps answer questions such as “why,” “how,” “what does this experience mean,” and “what are people thinking?”
Quantitative vs. Qualitative Research at a Glance
| Research Characteristic | Quantitative Research | Qualitative Research |
|---|---|---|
| Primary purpose | Measure and quantify | Explore and understand |
| Typical data | Numerical | Words, observations, images, narratives |
| Common questions | How many? How much? How often? | Why? How? What does it mean? |
| Common methods | Surveys, experiments, structured measurement | Interviews, focus groups, communities, observation |
| Sample approach | Often larger samples | Often smaller, targeted samples |
| Analysis | Statistical analysis | Thematic, content, interpretive analysis |
| Output | Percentages, averages, relationships, statistical findings | Themes, motivations, perceptions, detailed insights |
| Best suited for | Measurement and comparison | Exploration and depth |
| Typical role | Testing and measuring | Discovering and explaining |
Neither approach is inherently superior.
The appropriate method depends on what the organization needs to learn.
When Should You Use Quantitative Research?
Quantitative research is often appropriate when the business question requires measurement.
For example, a company launching a new product may want to know:
- What percentage of the target market is aware of the concept?
- How many consumers would consider purchasing it?
- Which product attributes matter most?
- How does purchase intent vary by age?
- How does interest differ between existing and prospective customers?
These questions lend themselves to structured quantitative research.
Quantitative research can also be particularly useful when a company needs to compare multiple groups or track performance over time.
Common business applications include:
- Customer satisfaction
- Brand tracking
- Market sizing
- Product research
- Pricing research
- Segmentation
- Concept testing
- Advertising research
- Purchase intent
- Customer experience measurement
- Employee research
- Healthcare research
- B2B research
When Should You Use Qualitative Research?
Qualitative research is often useful when a company needs to understand the reasons behind behavior.
For example, suppose a company discovers through quantitative research that customers are less satisfied with a product than expected.
A survey may identify the size of the problem, but it may not fully explain why customers are dissatisfied.
Qualitative interviews or focus groups could explore the issue in greater detail.
Participants might reveal that:
- The product is difficult to use
- Certain features are confusing
- The onboarding process is frustrating
- Customers expected something different
- A competitor provides a better experience
- The company’s messaging does not match customer expectations
These findings can help explain the quantitative results and identify potential solutions.
What Are Common Quantitative Research Methods?
Quantitative market research can involve a range of methodologies.
Online surveys
Online surveys are widely used to collect structured responses from a defined target audience.
They can measure:
- Awareness
- Satisfaction
- Preferences
- Purchase intent
- Usage
- Attitudes
- Perceptions
- Pricing
- Brand metrics
Conjoint analysis
Conjoint research can help organizations understand how people value different product or service attributes and the tradeoffs they make between them.
MaxDiff
MaxDiff can help researchers understand relative preferences by asking respondents to identify the most and least important options from sets of attributes or concepts.
Segmentation research
Quantitative segmentation can identify groups of consumers or business decision-makers with different characteristics, needs, behaviors, or preferences.
Pricing research
Quantitative research can help companies evaluate pricing perceptions, willingness to pay, price sensitivity, and other pricing considerations.
Veridata Insights provides quantitative research services that can include survey design and programming, recruitment, data collection, real-time fieldwork monitoring, analytics, and custom reporting.
What Are Common Qualitative Research Methods?
Qualitative research includes several different methodologies.
In-depth interviews
In-depth interviews allow researchers to explore individual experiences, perceptions, motivations, and decision-making in detail.
They can be especially useful for:
- B2B research
- Healthcare research
- Executive research
- Complex purchasing decisions
- Sensitive subjects
- Specialized audiences
Focus groups
Focus groups bring participants together for moderated discussions about a product, service, concept, brand, or topic.
The interaction between participants can reveal different perspectives and generate ideas that may not emerge from a structured survey.
Online communities
Online communities allow researchers to engage participants over a longer period of time.
Participants may complete activities, discuss topics, respond to questions, keep diaries, or evaluate concepts.
Product testing
Qualitative product testing can help organizations understand how people experience a product and where usability or perception problems may exist.
Ethnographic research
Ethnographic approaches can help researchers understand behavior in the context in which it naturally occurs.
Veridata Insights offers qualitative research capabilities that can include in-depth interviews, video calls, product testing, shop-alongs, dyads, online bulletin boards and diaries, focus groups, online communities, ethnographic research, mystery shopping, and in-person intercepts.
How Are Quantitative and Qualitative Research Analyzed?
The analysis process differs substantially between the two approaches.
Quantitative analysis
Quantitative data can be analyzed using statistical techniques to identify:
- Frequencies
- Percentages
- Averages
- Differences between groups
- Correlations
- Relationships
- Predictive patterns
- Segments
- Preference structures
The specific analysis depends on the research design and objectives.
Qualitative analysis
Qualitative data can involve transcripts, written responses, recordings, observations, images, or other non-numerical information.
Researchers may analyze this information to identify:
- Themes
- Patterns
- Motivations
- Attitudes
- Perceptions
- Language
- Barriers
- Needs
- Contradictions
- Emotional responses
Qualitative analysis generally requires researchers to interpret the data in context rather than simply calculate numerical results.
What Are the Advantages of Quantitative Research?
Quantitative research offers several benefits.
1. It provides measurable results
Businesses can quantify attitudes, behaviors, preferences, and other variables.
2. It enables comparisons
Researchers can compare customer segments, markets, demographics, products, or time periods.
3. It can support statistical analysis
Numerical data can be analyzed using statistical techniques appropriate to the research design.
4. It can reach larger samples
Quantitative studies can often collect responses from larger numbers of participants than many qualitative studies.
5. It supports tracking
Companies can repeat surveys over time to monitor changes in customer attitudes, brand perceptions, satisfaction, or other metrics.
What Are the Advantages of Qualitative Research?
Qualitative research offers a different set of strengths.
1. It provides depth
Participants can explain their experiences and opinions in their own words.
2. It explores motivations
Qualitative research can help uncover why people behave in particular ways.
3. It can uncover unexpected insights
Open-ended conversations can reveal issues researchers did not anticipate when designing a survey.
4. It can help develop quantitative research
Qualitative findings can inform questionnaire development, response options, terminology, and hypotheses.
5. It provides context
Numbers can show what is happening. Qualitative research can help explain the experience behind those numbers.
What Are the Limitations of Quantitative Research?
Quantitative research can be powerful, but it is not designed to answer every question.
Potential limitations include:
- Structured questions may limit the range of responses
- Important motivations may not be captured
- Unexpected issues may be difficult to identify
- Numerical findings can lack contextual detail
- Poor questionnaire design can affect results
- Sample quality can affect conclusions
A survey can tell a company that 42% of customers are dissatisfied, for example, but that percentage alone may not explain the reasons behind the dissatisfaction.
What Are the Limitations of Qualitative Research?
Qualitative research also has limitations.
These can include:
- Smaller sample sizes
- More time-intensive data collection
- More complex analysis
- Findings that are not designed for statistical generalization
- Greater dependence on skilled moderation and interpretation
Qualitative research is not intended to replace quantitative measurement when the business question requires estimates or statistical comparisons.
Instead, it provides a different type of evidence.
Can You Combine Quantitative and Qualitative Research?
Yes.
Combining quantitative and qualitative research is often called a mixed-methods approach.
A company might begin with qualitative research to explore a market and identify customer needs.
It could then conduct a quantitative survey to determine how widespread those needs are within the target population.
Alternatively, a company could conduct a quantitative study first, identify an unexpected finding, and then conduct qualitative interviews to explore the reasons behind it.
Example of a mixed-methods research program
Step 1: Qualitative exploration
Conduct interviews with customers to understand their needs, frustrations, and decision-making processes.
Step 2: Quantitative measurement
Build a survey based partly on those findings and measure the prevalence of identified needs across a larger sample.
Step 3: Deeper exploration
Conduct follow-up interviews with selected segments to understand particularly important or unexpected findings.
Step 4: Business application
Combine the findings to inform product development, positioning, customer experience, or marketing strategy.
This type of integration can provide a more complete understanding than either approach alone.
Pew Research Center has described using qualitative methods such as focus groups to inform questionnaire development for subsequent survey research, illustrating how the two approaches can complement one another.
How Veridata Insights Supports Quantitative and Qualitative Research
Choosing between quantitative and qualitative research is only one part of a successful research project.
Organizations also need to consider:
- Target audience
- Recruitment
- Sample design
- Questionnaire or discussion guide development
- Fieldwork
- Data quality
- Analysis
- Reporting
- Research timelines
Veridata Insights can support organizations across these areas.
Quantitative research services
Veridata Insights provides quantitative research support that can include:
- Study design
- Survey programming
- Respondent recruitment
- Data collection
- Real-time fieldwork monitoring
- Data processing
- Advanced analytics
- Custom reporting
- Data visualization
Quantitative research can be conducted with B2B, consumer, and healthcare audiences across domestic and international markets.
Qualitative research services
Veridata Insights also provides qualitative research support, including:
- In-depth interviews
- Focus groups
- Online communities
- Product testing
- Shop-alongs
- Dyads
- Online bulletin boards
- Online diaries
- Ethnographic research
- Mystery shopping
- In-person intercepts
This flexibility allows organizations to select a research approach that fits their objectives instead of forcing every research question into the same methodology.
Why Choose Veridata Insights for Market Research?
Veridata Insights provides flexible market research services for companies, organizations, agencies, and businesses that need actionable information.
Its capabilities span the research lifecycle, from consultation and study design through recruitment, data collection, processing, analytics, reporting, and visualization.
| Research Need | Veridata Insights Capability |
|---|---|
| Research design | Consultation and methodology |
| Quantitative research | Surveys and advanced quantitative methods |
| Qualitative research | Interviews, focus groups, communities, and other methods |
| Respondent recruitment | B2B, consumer, healthcare, and hard-to-reach audiences |
| Data collection | Multi-source research fieldwork |
| Data processing | Processing and coding |
| Analysis | Advanced analytics |
| Reporting | Custom reporting |
| Visualization | Data visualization |
| International research | Global respondent recruitment |
Veridata Insights can provide as much or as little research support as a project requires.
There are no project minimums, allowing organizations to use Veridata Insights for targeted research recruitment as well as broader full-service research engagements.
How to Choose the Right Research Method
Before choosing quantitative or qualitative research, ask several questions.
What is the primary research objective?
If you need to measure something, quantitative research may be appropriate.
If you need to understand something, qualitative research may be more appropriate.
Do you need statistical measurement?
If the answer is yes, quantitative research is likely to be an important part of the research design.
Are you exploring a new or poorly understood topic?
Qualitative research may be useful for identifying the language, motivations, concerns, and experiences associated with the topic.
Do you need to understand both scale and motivation?
Consider a mixed-methods approach.
Who needs to participate?
The target audience can influence the appropriate methodology, recruitment strategy, sample design, and research logistics.
What decisions will the research inform?
Start with the business decision, then determine what information is necessary to support it.
The methodology should serve the decision, not the other way around.
FAQs About Quantitative and Qualitative Research
What is the main difference between quantitative and qualitative research?
Quantitative research generally focuses on numerical measurement, statistical analysis, and identifying patterns across a defined population. Qualitative research focuses on understanding experiences, perceptions, motivations, and behaviors in greater depth.
Is quantitative or qualitative research better?
Neither approach is universally better. The appropriate method depends on the research question, target audience, business objective, and type of information needed.
What questions does quantitative research answer?
Quantitative research is useful for questions such as how many, how much, how often, how strongly, and how different groups compare.
What questions does qualitative research answer?
Qualitative research is useful for exploring questions such as why, how, what people experience, what they think, and what motivates their behavior.
Can surveys be qualitative?
Yes. Surveys can include open-ended questions that generate qualitative data. However, surveys are frequently associated with quantitative research when they use structured questions and numerical response scales.
Are focus groups qualitative or quantitative?
Focus groups are generally considered a qualitative research method because they involve moderated discussions designed to explore perceptions, experiences, attitudes, and motivations.
Are interviews quantitative or qualitative?
Interviews can be designed in different ways, but in market research, in-depth interviews are commonly used as a qualitative methodology.
What is mixed-methods research?
Mixed-methods research combines quantitative and qualitative approaches within a research program to answer complementary questions.
When should a company use qualitative research before a survey?
Qualitative research can be useful before a survey when the company needs to explore an unfamiliar topic, understand customer language, identify potential response options, or develop hypotheses.
When should a company use quantitative research after qualitative research?
Quantitative research can be useful after qualitative research when the organization wants to measure how widespread a finding is across a larger target population.
Does Veridata Insights offer both quantitative and qualitative research?
Yes. Veridata Insights offers both quantitative and qualitative research services, including respondent recruitment, data collection, analysis, reporting, and other research support.
Can Veridata Insights recruit specialized research audiences?
Yes. Veridata Insights supports recruitment for B2B, healthcare, consumer, and hard-to-reach audiences, including specialized professional and decision-maker populations.
Conclusion
The difference between quantitative and qualitative research is not simply a matter of numbers versus words.
Quantitative research is designed to measure, compare, quantify, and analyze patterns. Qualitative research is designed to explore, understand, and uncover the motivations and experiences behind behavior.
For many business questions, the strongest research strategy may involve both.
A company might use qualitative interviews to understand customer needs, a quantitative survey to measure those needs across a larger population, and additional qualitative research to explore unexpected findings.
The key is to begin with the business question and determine what type of evidence is needed to make a confident decision.
Veridata Insights can help companies, organizations, agencies, and businesses select and execute research approaches that align with their objectives. From quantitative surveys and advanced analytics to qualitative interviews, focus groups, online communities, and specialized respondent recruitment, Veridata Insights offers flexible research support across a wide range of market research needs.
If your organization needs to understand its customers, evaluate a new product, measure a market, explore a business challenge, or uncover the motivations behind customer behavior, consider Veridata Insights for your next market research project. Connect today to learn more.
