Quantitative and Qualitative Methods

Like the distinction drawn between positivist sociology and Verstehen sociology, there is often a distinction drawn between two types of sociological investigation: quantitative and qualitative.

Quantitative methods of sociological research approach social phenomena from the perspective that they can be measured and/or quantified. For instance, social class, following the quantitative approach, can be divided into different groups - upper-, middle-, and lower-class – and can be measured using any of a number of variables or a combination thereof: income, educational attainment, prestige, power, etc. Quantitative sociologists tend to use specific methods of data collection and hypothesis testing, including: experimental designs, surveys, secondary data analysis, and statistical analysis.

Qualitative methods of sociological research tend to approach social phenomena from the Verstehen perspective. They are used to develop a deeper understanding of a particular phenomenon. They also often deliberately give up on quantity - necessary for statistical analysis - in order to reach a depth in analysis of the phenomenon studied. Even so, qualitative methods can be used to propose relationships between variables. Qualitatively oriented sociologists tend to employ different methods of data collection and hypothesis testing, including: participant observation, interviews, focus groups, content analysis and historical comparison.

While there are sociologists who employ and encourage the use of only one or the other method, many sociologists see benefits in combining the approaches. They view quantitative and qualitative approaches as complementary. Results from one approach can fill gaps in the other approach. For example, quantitative methods could describe large or general patterns in society while qualitative approaches could help to understand how individuals understand those patterns.

Objective versus Critical
Sociologists, like all humans, have values, beliefs, and even pre-conceived notions of what they might find in doing their research. Because sociologists are not immune to the desire to change the world, two approaches to sociological investigation have emerged. By far the most common is the objective approach advocated by Max Weber. Weber recognized that social scientists have opinions, but argued against the expression of non-professional or non-scientific opinions in the classroom (1946:129-156). Weber took this position for several reasons, but the primary one outlined in his discussion of Science as Vocation is that he believed it is not right for a person in a position of authority (a professor) to force his/her students to accept his/her opinions in order for them to pass the class. Weber did argue that it was okay for social scientists to express their opinions outside of the classroom and advocated for social scientists to be involved in politics and other social activism. The objective approach to social sciences remains popular in sociological research and refereed journals because it refuses to engage social issues at the level of opinions and instead focuses intently on data and theories.

The objective approach is contrasted with the critical approach, which has its roots in Karl Marx’s work on economic structures. Anyone familiar with Marxist theory will recognize that Marx went beyond describing society to advocating for change. Marx critically examined capitalism and his analysis of that economic system included the call for change. This approach to sociology is often referred to today as critical sociology.