identify the type of study try - it to determine if a drug has an effect on patient illness, a researcher…

identify the type of study try - it to determine if a drug has an effect on patient illness, a researcher gives the drug to 100 patients and gives a placebo to another group of 100 patients. what type of study is this? a principal conducts a study to find the average age of all math teachers in a given high school by recording all their ages. what type of study is this?

identify the type of study try - it to determine if a drug has an effect on patient illness, a researcher gives the drug to 100 patients and gives a placebo to another group of 100 patients. what type of study is this? a principal conducts a study to find the average age of all math teachers in a given high school by recording all their ages. what type of study is this?

Answer

Brief Explanations:

  1. In the first case, the researcher is manipulating the treatment (drug vs placebo) given to different groups to see an effect on patient illness, which is characteristic of an experiment.
  2. In the second case, the principal is simply collecting data (ages of math - teachers) without any manipulation or intervention, which is an observational study.

Answer:

  1. Experiment
  2. Observational study