6 Written questions
5 Multiple choice questions
- A random selection of a representative sample and that collects data.
- The designer doesn't know who has which treatment.
- Individuals selected based on their availability.
- A study that imposes a treatment on individuals to compare the responses to different levels of such treatment.
5 True/False questions
Sample → A subset or portion of the population that was selected as a representative.
Nonresponse Bias → Those that feel more strongly on a topic and are willing to respond.
Voluntary Response → Respondents can decide whether or not to respond.
Blind Experiments → The designer knows who the control group is and who gets what.
Randomization → The entire collection of individuals.