Used in qualitative studies, the type of sampling that is intentional and used to understand a central phenomenon by selecting specific types of individuals and sites.
What is purposeful sampling?
100
In a study on the affect of the amount of sleep on 5th graders' test scores, this is the independent variable.
What is the amount of sleep?
100
These committees approve or disapprove research studies within organizations based on the significance vs. the risk.
What are institutional review boards (IRBs)?
100
First, second, and third is an example of this scale of measurement.
What is an ordinal scale of measurement?
100
This type of design aims to test a practice or procedure to determine its effect on a dependent variable.
What is an experimental design?
200
Used in quantitative designs, this type of sampling gives each member of a population an equal probability of getting selected and is meant to represent the population.
What is simple random sampling?
200
In a study on the affect of video game play on the amount of violence displayed in a high school, this is the dependent variable.
What is the violence displayed in the high school?
200
A written document that outlines the purpose and risk of a study that each participant should sign prior to the study.
What is an informed consent form?
200
This is represented by the equation n-1, or one less than the number of scores in a sample.
What are the degrees of freedom (df)?
200
Using statistical analysis, researchers using this design aim to determine whether a significant relationship exists between two or more variables.
What is a correlational design?
300
This type of sampling involves the researcher asking the participants to "recruit" other participants within the population and can result in a very large sample size.
What is snowball sampling?
300
This type of variable is measured to help rule out confounding variables. It is generally something such as race, socioeconomic status, or gender.
What is a control variable?
300
This is an ethical issue involving using someone's work without giving them credit.
What is plagiarism?
300
Calculating this allows researchers to compare data from different scales. A z-score is a type of this.
What is a standard score?
300
This type of survey design involves collecting data over a period of time to measure changes or trends within a certain population.
What is a longitudinal survey design?
400
This is the difference between the sample estimate and the true population score, and is important to take into consideration when conducting research.
What is the sampling error?
400
This is a variable that cannot be directly measured by researchers, but may have an affect on the dependent variable.
What is a confounding variable?
400
This is an ethical issue which involves misleading or not informing participants of the true purpose of the study.
What is deception?
400
This is the standard deviation for the following set of scores.
6, 19, 4, 15, 9, 11, 16, 8, 7
What is 4.787.
400
This type of design is qualitative and aims to describe, analyze, and interpret data on a group with shared patterns, beliefs, language, etc.
What is an ethnographic design?
500
This purposeful type of sampling bases the selection of participants on being in a common subgroup and sharing a defining set of characteristics, such as the members of the school board in a particular county.
What is homogenous sampling?
500
This type of variable may stand between the independent and dependent variable and may add or subtract to the effects that the independent variable has on the dependent variable.
What is an intervening or mediating variable?
500
This ethical issue involves adding, subtracting, or making up data to obtain desired results in a study.
What is fabrication or falsification?
500
About this percentage of scores will fall between 2 standard deviations of the mean in a normally distributed set.
What is 95%.
500
Examples of this type of research design includes: biographies, oral histories, and personal accounts.