What is a cohort design? a) A strategy in which the ...

[tnt_battle]

What is a cohort design?
 
  a) A strategy in which the investigator studies an intact group or groups over time
  b) A strategy in which the investigator manipulates an independent variable across groups and then looks at its effects over time
  c) A strategy in which the investigator studies one individual over time
  d) A strategy in which the investigator manipulates which subjects are randomly assigned

Question 2

Which of the following is a strength of case-control designs?
 
  a) The results can be generalized to the population.
  b) Eliminates threats due to sampling biases
  c) Allows the investigator to draw inferences about causality
  d) Design is feasible and efficient.

[asware1]

Answer to Question 1

Correct Answer: a

Answer to Question 2

Correct Answer: d

[tnt_battle]

Thanks for the timely response, appreciate it

[TheDev123]

Excellent