1- Which of the following statements is NOT true about epidemiology?

Epidemiology is the study of the distribution and determinants of health-related states and events in populations and the applications of this study to the control of health problems.

Epidemiologic research is a tool that is becoming increasingly popular in human performance measurement.

Norm-referenced measurement is fundamental to the type of research questions studied by epidemiologists.

Descriptive epidemiology seeks to describe the frequency and distribution of mortality and morbidity according to time, place, and person.

2- What is randomly assigning whole populations to treatments or exposures called?

case control

case series

community trial

randomized clinical trial