Question

please solve the mcqs exams time hurry up
1 Which of the following advantages of cross-sectional studies is correct?
A. Multiple factors can be measured at the same time during the survey B. Less investigation bias
C. Could verify the causality of the disease
D. No survivor bias
2 Descriptive study applies mostly to
A. Etiology research
B. Preventive research
C. Investigate the distribution of the disease
D. The risk factors of the disease 3 Which of the following cannot be achieved through the cross-sectional study?
A. Identify the high-risk groups. B. Evaluate the effect of the vaccination.
C. Evaluate the quality of the data such as the surveillance of the disease.
D. Obtain the incidence and the distribution of the disease in the target group.
4.An investigation arthrolithiasis wascarried out in a certain place, and 400patients with arthrolithiasis were found in100,000 people, which frequency index can be caculated
A. The incidence density is 400/100,000
B. The prevalence is 400/100,000 C. The attack rate is 400/100,000 D. The cumulative incidence is 400/100,000
5. Which of the method can be used to achieve early detection and treatment of the patients?
A. Case investigation
B. Longitudinal study
C. Ecological study
D. Census .
6Which of the following characteristics do descriptive studies have?
A. Collect and analyze data on an individual basis
B. Describe the characteristics of the disease distribution and provide a clue to the cause of the disease
C. Choose people of different natures to compare
D. Obtain the surveyed population by random sampling​

Answer 1

Answer:

1 A part; 2 A part ; 3 c part