A research study notes that 50% of individuals who are eligible for a study ultimately decided to not enroll. This study likely has an issue related to:

When conducting participant observation, the researcher role of ______________ describes when the researcher conceals their identity (i.e., they do not tell anyone that they are a researcher or conducting research) and fully immerses themselves with a target group, taking part in the events/behaviors they are interested in studying. 

A research team has proposed a to conduct a clinical trial to investigate the efficacy of a new cholesterol drug. In describing the methods and justification for the trial, the authors note “This study will take place in a rural area of Guatemala. The results of this study are important because they can provide efficacy and safety data about this drug. This data will be submitted to the United States Food and Drug Administration, in order to support the release of this drug on the U.S. commercial market.” This study violates the Belmont Report ethical principle of _______ .

You work at a state public health agency and have been asked to determine whether a recent change in your state’s laws regarding alcohol taxes has an effect on alcohol sales in your state. Which of the following study designs would be the best to use when trying to answer this question?

In a “true” experiment, the ________ is what is manipulated by the researcher.

Observational research designs are best suited for:

The news has been filled with stories about the spread of a new disease. What study design would be the best choice if you wanted to study the factors that may be contributing to this outbreak?

A researcher testing a new cholesterol medication develops a placebo that is visually indistinguishable from the study medication (each pill has the same color, shape, size, etc.). A study nurse will call every participant each week and ask them if they’ve experienced any side effects, regardless of experimental condition (that is, regardless of whether participants receive the new anxiety medication or the placebo pill). In doing this, the researchers were most likely attempting to control for _________.

________ is the number of people who do not complete a follow-up assessment, divided by the number of people who started the study.

___________ is a qualitative research approach that focuses on describing the cultural basis of beliefs, attitudes, norms and behaviors.