Research Assignment: Review Flashcards
Sex, ethnicity, language, and types of comorbidities are all __________ type of variables.
Qualitative variables
The following paragraph is said to be which type of statement? ‘This study was approved by the University of Arizona Institutional Review Board (Study reference: 00000648) and a Health Insurance Portability and Accountability Act waiver of informed consent was granted due to our de-identification of reported data (Haddad D, et al. 2023).’
Ethics
What factors make generalization of the results difficult for this research study?
- Small sample size
- Retrospective review limited to one community center
- Inconsistent documentation of medical students
Provide examples of nominal data:
- Gender
- Ethnicity
- Marital status
True or False: Type II error is also known as a false negative.
True
A process in which a sample is drawn by systematically selecting every nth subject from a list of all subjects in the population is called __________.
Systemic random sampling
Achieved by random selection of participants from a population, this sampling method is known as __________.
Simple random sampling
A process in which the sample is selected by randomly choosing smaller and smaller subgroups from the main population is called __________.
Cluster sampling
Used when researchers know some of the variables in the population will affect representatives of the sample, this method is called __________.
Stratified sampling
True or False: The Normal curve or normal distribution curve is also known as a bell-shaped curve.
True
The consistency of repeated measures of the same variable with the same scale over time is known as _____________ reliability testing.
Stability
True or False: Roman numbers are used to symbolize a population parameter.
False
The point of graphs in statistics is to display the research to the readers in _________ form.
pictorial
True or False: Reliability refers to consistency of a measure.
True
True or False: Face validity can be measured in both qualitative and quantitative studies.
True
Figure 2 in the research article displays a graph. This type of graph is called a __________ or a ____________.
frequency polygon, line graph
True or False: The y axis and the x axis for line graphs and histograms are used to display different variables.
False
According to a histogram pictorial, the Y-axis and X-axis display:
Y-axis -frequency
X-axis -continuous variable
If asked to construct a histogram to show the number of participants without HF that had a stroke, the Y-axis and X-axis would display:
- Y-axis: # of participants without HF
- X-axis: # of years
