(Single Best Answer) Question 121: The structural proteins are involved in maintaining the shape of a cell or in the formation of matrices in the body. The shape of these proteins is ?
A) Globular B) Fibrous C) Stretch of beads D) Planar Answer (Select an option above to get the answer):
A) Facilitate double blinding B) Help ensure the study subjects are representative of general population C) Ensure the groups are comparable on base line characteristics D) Reduce selection bias in allocation to treatment Answer (Select an option above to get the answer):
A) Achieve comparability between study and control groups B) Avoid observer bias C) Avoid subject bias D) Avoid observer and subject bias Answer (Select an option above to get the answer):
(Single Best Answer) Question 124: When a drug is evaluated for its usefullness in controlled conditions, it is termed as a trial signifying ?
A) Efficacy B) Effectiveness C) Efficiency D) Effect modification Answer (Select an option above to get the answer):
A) 150 KCals B) 200 KCals C) 300 Kcals D) 550 KCals Answer (Select an option above to get the answer):
(Single Best Answer) Question 127: In a village having population of 1000, we found patients with certain disease and the results of a new diagnostic test on that disease are given below.
Disease
Test result
Present
Absent
+
180
400
-
20
400
Which of the following is the positive predictive value of diagnostic test in that population ?
A) 45 B) 31 C) 95 D) 50 Answer (Select an option above to get the answer):
A) Standardization allows comparison to be made between two different populations B) The national population is always taken as the standard population C) For Direct Standardization, age specific rates of the study population are applied to that of the standard population D) For Indirect Standardization age specific rates of the standard population are applied to the study population Answer (Select an option above to get the answer):
A) Baseline characteristics of intervention and control groups should be similar B) Investigator's bias is minimized by double blinding C) The sample size required depends on the hypothesis D) The drop-outs from the trial should be excluded from the analysis Answer (Select an option above to get the answer):