RHM 1, SPRING 2024
Assignment 3
NAME: ———-1. In an Internet poll from quibblo.com 629 respondents indicated the
following as their type of Health Insurance.
a) Find the percent for Employment-based type of insurance.
b) What kind of graph would be most appropriate to represent this data?
Percentage of People by Type
of Health Insurance Coverage
Uninsured
Direct-purchase
Medicare
Military health care
Employment-based
Count Percent
164
26%
129
21%
43
7%
52
8%
241
2. For the following set of data {3,6,5,4,6,5,9,10,11,7,9}, calculate:
a) sample mean
b) median
c) mode
d) standard deviation:
e) 1st quartile
f) 3rd quartile
g) interquartile range
3. What is the mode for data given below?
An eye clinic sister noted the eye-colour of 100 consecutive patients. The
results are shown in Figure:
4. A researcher wishes to compare efficacy of laser ablation to standard
anterior temporal lobectomy for the treatment of seizures. The outcome
measure is the degree of seizure freedom as rated by the Engel Epilepsy
Surgery Outcome Scale (Class I: free of disabling seizure, Class II: rare
disabling seizure, Class III: worthwhile improvement, Class IV: no
worthwhile improvement). This type of scale may be described as
which of the following?
A. Nominal
B. Ordinal
C. Numerical
D. Discrete
E. Binary
5. An important early step in the development of a search strategy for a
systematic review is to break down the research question into individual
components known as “concepts”. Once this is done and search terms for each
concept are developed, which Boolean operator will make the search strategy
broader?
A. NOT
B. AND
C. OR
D. All of these options
E. AND & OR
6. A researcher wishes to assess the effect of Drug A compared to Drug B on
hypertension. Subjects are randomized to two groups. The first group receives
Drug A for eight weeks, takes no medication for the following two weeks,
then receives Drug B for eight weeks. The second group receives Drug B for
eight weeks, takes no medication for the following two weeks, then receives
Drug A for eight weeks. Blood pressure is measured prior to the study and at
week 8, week 10, and week 18. Which of the following best describes this
study design?
A. Factorial RCT
B. Parallel RCT
C. Adaptive RCT
D. Cross-over RCT
E. Group allocation RCT
7. Which of the following studies provides the highest level of evidence for
the efficacy of a drug?
A. Meta-analysis of cohort studies
B. Expert opinion
C. Randomized controlled trials
D. Case-control study
E. Systematic review of RCTs