Statistically Speaking
This must be present in a sample in order to generalize sample data to a population
What is Random Selection?
Members of a population are less likely to be chosen or can’t be chosen
What is Undercoverage?
Type of study where it watches the individuals and gathers variables of interest, but does not influence the response
What is an Observational Study?
You are trying to determine the average age of McDonogh Students and decide to ask ten randomly selected students their age. This is the name of the method you used
What is a Simple Random Sample?
These are defined as the levels that are different from each explanatory variable in a treatment.
What are Treatments?
This must be present in a sample in order to generalize sample data to a population
What is Random Selection?
The systematic tendency of inaccurate answers to a survey question
What is Response Bias?
This occurs when two variables are associated in a way that their effects on a response variable cannot be distinguished from each other
What is Confounding?
With this type of sampling, you randomly choose a starting point. At that starting point you use an interval (staying the same each time) to choose subjects until you have a large enough sample.
What is Systematic Sampling?
These are the two types of blinding.
What are Single Blind and Double Blind?
In an experiment, this allows us to determine a cause-and-effect relationship.
What is Random Assignment?
You have a sign saying you are doing a survey and the people who participate come up to you. What type of Bias is this?
What is Voluntary Response Bias?
A _____ measures the outcome of the study and the ______ may help explain or predict the changes.
What is Response Variable and Explanatory Variable?
You are trying to determine the average age of McDonogh Students and decide to randomly select 3 classes and survey all students in these classes. This is the name of the method you used.
What is Cluster Sampling?
We use this to be able to give us baseline data for the experiment.
What is a control group?
When sample data is determined to be too unlikely to occur by change, it is called this.
What is Statistically Significant?
You are asking people on the street questions for a sample, but some people refuse to answer and keep walking. What type of Bias is this?
What is Nonresponse Bias?
This deliberately imposes treatments on individuals to measure their response
What is an Experiment?
You are trying to determine the average age of McDonogh Students and decide to ask one randomly selected student in each advisory. This is the name of the method you used.
What is Stratified Random Sampling?
This effect happens when a fake treatment “works”.
What is the Placebo Effect?
The reason why estimates from sample data are rarely exactly equal to the true population value when the sample data is generalized to the broader population.
What is Sampling Variability?
You go door to door asking people if they support a candidate for office. What type of Bias is this?
What is Response Bias?
In an experiment, this means giving each treatment enough experimental units so a difference in the effects of treatments can be distinguished from chance
What is Replication?
The sampling method contains these steps.
What are Label, Randomize Distinctly, Select, and Repeat?
A treatment is randomly given to the subjects of the experiment. Both the subjects and the people administering the treatment don’t know what treatment they are giving/ receiving. This would be a situation of:___________.
What is Double Blindness?