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What Do Social Scientists Measure?

20 十月, 2015 - 09:01

The question of what social scientists measure can be answered by asking oneself what social scientists study. Think about the topics you’ve learned about in other sociology classes you’ve taken or the topics you’ve considered investigating yourself. Or think about the many examples of research you’ve read about in this text. In “Linking Methods With Theory” we learned about Melissa Milkie and Catharine Warner’s study (2011) 1 of first graders’ mental health. In order to conduct that study, Milkie and Warner needed to have some idea about how they were going to measure mental health. What does mental health mean, exactly? And how do we know when we’re observing someone whose mental health is good and when we see someone whose mental health is compromised? Understanding how measurement works in research methods helps us answer these sorts of questions.

As you might have guessed, social scientists will measure just about anything that they have an interest in investigating. For example, those who are interested in learning something about the correlation between social class and levels of happiness must develop some way to measure both social class and happiness. Those who wish to understand how well immigrants cope in their new locations must measure immigrant status and coping. Those who wish to understand how a person’s gender shapes their workplace experiences must measure gender and workplace experiences. You get the idea. Social scientists can and do measure just about anything you can imagine observing or wanting to study. Of course, some things are easier to observe, or measure, than others, and the things we might wish to measure don’t necessarily all fall into the same category of measureables.

In 1964, philosopher Abraham Kaplan (1964) 2 wrote what has since become a classic work in research methodology, The Conduct of Inquiry (Babbie, 2010). 3 In his text, Kaplan describes different categories of things that behavioral scientists observe. One of those categories, which Kaplan called “observational terms,” is probably the simplest to measure in social science. Observational terms are the sorts of things that we can see with the naked eye simply by looking at them. They are terms that “lend themselves to easy and confident verification” (1964, p. 54). 4 If, for example, we wanted to know how the conditions of playgrounds differ across different neighborhoods, we could directly observe the variety, amount, and condition of equipment at various playgrounds.

Indirect observables, on the other hand, are less straightforward to assess. They are “terms whose application calls for relatively more subtle, complex, or indirect observations, in which inferences play an acknowledged part. Such inferences concern presumed connections, usually causal, between what is directly observed and what the term signifies” (1964, p. 55). 5 If we conducted a study for which we wished to know a person’s income, we’d probably have to ask them their income, perhaps in an interview or a survey. Thus we have observed income, even if it has only been observed indirectly. Birthplace might be another indirect observable. We can ask study participants where they were born, but chances are good we won’t have directly observed any of those people being born in the locations they report.

Sometimes the measures that we are interested in are more complex and more abstract than observational terms or indirect observables. Think about some of the concepts you’ve learned about in other sociology classes— ethnocentrism, for example. What is ethnocentrism? Well, you might know from your intro to sociology class that it has something to do with the way a person judges another’s culture. But how would you measure it? Here’s another construct: bureaucracy. We know this term has something to do with organizations and how they operate, but measuring such a construct is trickier than measuring, say, a person’s income. In both cases, ethnocentrism and bureaucracy, these theoretical notions represent ideas whose meaning we have come to agree on. Though we may not be able to observe these abstractions directly, we can observe the confluence of things that they are made up of. Kaplan referred to these more abstract things that behavioral scientists measure as constructs. Constructs are “not observational either directly or indirectly” (1964, p. 55), 6 but they can be defined based on observables.

Thus far we have learned that social scientists measure what Abraham Kaplan called observational terms, indirect observables, and constructs. These terms refer to the different sorts of things that social scientists may be interested in measuring. But how do social scientists measure these things? That is the next question we’ll tackle.