Which one of the following is an advantage of an observational study when compared to an experimental study? Lurking variables are not a problem. The treatments studied may be unethical when used in experiments. Randomization is less important because researchers are observing things “as they happen.” The treatment can be controlled by the researchers.

Which of the following is an important advantage of experiments over observational studies? Check all that apply. Ensuring that each subject in the trial receives the best possible treatment Isolating the effects of a specific treatment Guaranteeing that approximately the same number of subjects is assigned to each treatment group Controlling for lurking variables to have a stronger case for causation

What is the major difference between an experiment and an observational study?*1 pointA treatment is imposed in an experiment.Observational studies can use only one population.There two control groups instead of one in an experiment.An observational study can establish ca.use-and-effect relationshipsNONE OF THESE

Which of these is a disadvantage experiments have compared to other methods?Question 9Answera.They can ignore ethical issues more easilyb.They give a less clear picture of causalityc.Their results are not easily confirmed by applied studiesd.They are less able to consider more than one influence at once

Which of these is an advantage of the experiment, rather than something experiments are limited in doing?Question 4Answera.Have high external validityb.Easy to study many factors at the same timec.Can manipulate any variable you choosed.Can isolate causes free of any confounding variables

Experiments are useful because ______.Multiple choice question.they allow researchers to manipulate variablesthey cause increased productivity within the control group and the experimental groupsociologists know exactly what the outcomes will bethey tend to attract significant external funding