Sampling
Two types of probability sampling schemes.
What is... Simple random sample Systematic random sample Stratified random sample Cluster sample
The type of sampling method used in the scenario below. Passing out a survey to each patient that a student sees in a semester.
What is a convenience sample?
The main difference between an interval and a ratio.
What is presence of an absolute zero? Interval - no absolute zero Ratio - absolute zero
The measurement discussed in the example below. When we take the 400 people with the Zika virus in Washtenaw County and divide it by the total number of people at risk in the county for contracting the Zika virus.
What is incidence?
The ability of the research design to accurately answer the research question.
What is internal validity?
One type of non-probability sampling schemes.
What is... convenience purposive consecutive judgmental snowball
The type of sampling method used in the scenario below. I am surveying single pregnant women regarding their knowledge of pregnancy gingivitis. When I survey women that are a part of the WIC program, they often refer other women for the study.
What is a snowball sample?
One example of analyzing secondary data sources.
What is analyzing crime records, patient charts, consumer data, census bureau data, CDC dare, etc.?
If a researcher asks participants to name the country in which they were born, the researcher is using this type of scale of measurement.
What is nominal?
These types of sampling schemes are considered unbiased.
What are probability sampling schemes? (simple random, stratified random, cluster, systematic random)
The sampling method used in the scenario below. I am studying the effects of a certain toothpaste on gingivitis. To acquire my sample, I select young, health-conscious individuals with good oral hygiene.
What is judgmental/purposive sampling?
When we take the 4 students sick with the norovirus in the DH3 class and divide it by the total number of DH3s, this is an example of...
What is proportion OR prevalence?
The measurement discussed in the example below. When we take the 400 people with the Zika virus in Washtenaw County and divide it by the total number of people in the county.
What is prevalence?
The type of sampling scheme used in the following scenario. An example of a simple random sample would be a group of 25 employees chosen out of a hat from a company of 250 employees.
What is simple random sampling?
The sampling method used in the scenario below. My study would like to survey residents of the state of Michigan regarding their perception of their own oral health. I decide to randomly choose 10 counties within the state and survey 30 individuals from each county in the state to get a good representative sample.
What is cluster sampling?
500 individuals in Washtenaw County were reported to have the Zika virus. This is an example of _______.
What is count?
The following question uses this scale of measurement. On a scale of 1-10, how much dental pain have you experienced in the last week?
What is ordinal?
The type of sampling technique in the scenario below. A study wants to survey the undergraduate student population at U of M (10,000 students). The ideal sample size for the study is 100 participants. To select the sample, an alphabetical list of the 10,000 students was made and every 79th person out of 100 was selected for the study.
What is systematic random sampling?
The sampling method used in the scenario below. You are doing a study on the living arrangements of University of Michigan students. In order to get a proportionate sample, you decide to randomly select 10% of students from each level, freshmen through post-graduate.
What is stratified random sampling?
Three types of primary data collection methods.
What is interview, questionnaire, direct observation, dental indices?
If a researcher asks participants to state their current weight, the researcher is using this scale of measurement.
What is ratio?