A measurement is considered ______ if it actually measures what it is intended to measure, according to the topic of the study.
Sociological studies test relationships in which change in one ______ causes change in another.
- test subject
- operational definition
In a study, a group of ten-year-old boys are fed doughnuts every morning for a week and then weighed to see how much weight they gained. Which factor is the dependent variable?
- The doughnuts
- The boys
- The duration of a week
- The weight gained
Which statement provides the best operational definition of “childhood obesity”?
- Children who eat unhealthy foods and spend too much time watching television and playing video games
- A distressing trend that can lead to health issues including type 2 diabetes and heart disease
- Body weight at least 20 percent higher than a healthy weight for a child of that height
- The tendency of children today to weigh more than children of earlier generations
Which materials are considered secondary data?
- Photos and letters given to you by another person
- Books and articles written by other authors about their studies
- Information that you have gathered and now have included in your results
- Responses from participants whom you both surveyed and interviewed
Why is choosing a random sample an effective way to select participants?
- Participants do not know they are part of a study
- The researcher has no control over who is in the study
- It is larger than an ordinary sample
- Everyone has the same chance of being part of the study
Which research approach is best suited to the scientific method?
- Case study
- All of the above
The main difference between ethnography and other types of participant observation is:
- ethnography isn’t based on hypothesis testing
- ethnography subjects are unaware they’re being studied
- ethnographic studies always involve minority ethnic groups
- ethnography focuses on how subjects view themselves in relationship to the community
Which best describes the results of a case study?
- It produces more reliable results than other methods because of its depth
- Its results are not generally applicable
- It relies solely on secondary data analysis
- All of the above
Using secondary data is considered an unobtrusive or ________ research method.
To study the effects of fast food on lifestyle, health, and culture, from which group would a researcher ethically be unable to accept funding?
- A fast-food restaurant
- A nonprofit health organization
- A private hospital
- A governmental agency like Health and Social Services