QUESTION 1:
The researcher's interpretation of the study outcomes and the limitations of the study are usually found in this section of the article:
Findings
Discussion
Methods
Abstract
QUESTION 2
A study reports the average number of pregnancies in two groups. Next the columns that report on the number of pregnancies, a p-value is listed. Which of the following p values would suggest that there is a significant difference between groups on this variable?
P = .28
p < .001
p > .05
p = 0.10
QUESTION 3
Open access journal articles:
Are available only to readers or libraries with a subscription
Are limited to peer-reviewed articles
Publish only those studies that have statistically significant findings
Are available free of charge to the public
QUESTION 4
A study looking at risk for DVT uses a retrospective case-control design. A table is presented looking at outcomes (incident DVT) in women using hormonal agents compared to a control group not using hormonal agents. The statistic that will most likely be used to report on the risk of DVT is:
Odds ratio
Relative risk
Chi-square
Standard deviation
QUESTION 5
Using the table below, determine the sensitivity of the test (nearest whole number).
|
Patient has disease |
No Disease |
TOTAL |
| Test is positive |
70 |
120 |
190 |
| Test is negative |
30 |
240 |
270 |
| TOTAL |
100 |
360 |
460 |
The sensitivity is:
11%
33%
41%
70%
QUESTION 6
The stable below identified fall risk using both cross-sectional (one-time period 'snapshotIL measure) and longitudinal (repeated measures over time).
Based on the confidence intervals reported in this table, we can conclude that males had:
Higher fall risk
Lower tall risk
Same fall risk
Insufficient data to determine
QUESTION 7
Risk estimation Is based on the underlying concept of
Randomization
Chaos theory
Meta-analysis
Probabiiity
QUESTION 8
Which type of study would be LEAST LIKELY to use an experimental design?
Prospective cohort study
Correlational study
Clinical trial
Intervention study
QUESTION 9
All of the following statements are true EXCEPT:
Relative risk is expressed as a ratio
If 1.0 appears within the confidence interval for an odds ratio, there is no difference between groups
Confidence intervals provide better information than p values to judge clinical significance
values are not reported with odds ratios
QUESTION 10
The number of people who have a disease at a given point in time is referred to as:
Sensitivity
Specificity
Prevalence
Incidence