Telegram group: T.me/BBCNOUN ====== NSC204 ====== 1. How often is census usually carried out? Every 2 years --->> Every 10 years Every 12 years Every 6 years 2. Which of the followings is not true of cohort study --->> It cannot be used to measure direct estimate It is time consuming It is expensive Difficulty in data collection 3. Which group of people is the study unit in a case control study --->> Individuals people with communicable diseases Students Elderly people 4. Which of the following is a method of data collection Special investigation Data from environment --->> All of the options None of the options 5. Which of the following group of people is the study unit in a community intervention study Vulnerable people --->> Healthy people The whole community People with chronic illness 6. Case control is also known as ---------------------- --->> Case-reference cohort clinical trial community trial 7. which of the following infections is not transmissible from vertebrae animal to man under natural conditions? Lassa Fever Rabies Yellow Fever --->> Measles 8. The transference of antibodies produced in one body to another to induce protection against disease is known as ----- Active Immunity --->> Passive Immunity Herd Immunity Community immunity 9. Which of the followings is an example of experimental studies case control cohort --->> field trials None of the options 10. Which of the followings is not a type of statistics Vital Statistics Health statistics All of the options --->> None of the options