Sampling
This sample allows you to make generalization to a population
What is a Simple Random Sample?
Applying conclusions about a sample or study to a larger population
What is Generalization?
When the sample is chooses because it is easy to reach them
What is a Convenience Sample?
The entire group of interest
What is a Population?
A design where all experimental units are assigned to treatments randomly
What is a Randomized Design?
This sample reflects the important traits of the population
What is a Representative Sample?
The person or object that receives the treatment
What is an Experimental Unit?
This bias occurs when the participants are given the survey, but refuse to fill out the survey
What is a Nonresponse Bias?
A numerical value that is calculated from a sample
What is are Statistics?
What is typically be used to randomize a selection of participants?
What is a Random Number Generator?
This causes the probability to change slightly after each selection
What is Sampling Without Replacement?
The outcome measured after the treatment
What is a Response Variable?
When both the researcher and participant do not know who receives the treatment
This treatment has no affect on the participants
What is a Placebo?
Groups of experimental units that are grouped based off of similar characteristics
What are Blocks?
Subgroups of a population where the individuals share a similar characteristics
What is a Strata?
This balances lurking variables
What is Random Assignment?
This sampling includes voluntary responses and convenience samples
What is Non-random Sampling?
A numerical value that describes a population
What is the Parameter?
You use this design when you are comparing exactly two treatments or conditionsWhen there are enough units to distinguish treatment effects from chance variation
What is a Matched Pairs Design?
This draws conclusions about a population based off of data from one random sample or assignment.
What is Statistical Inference?
When you choose an Experimental design, what are you trying to control?
What is are Confounding Variables?
This type of question asks two questions, but only allows one response
What is a Double-Barreled Question?
This form of data collection is time consuming and has no sampling variability
What is a Census?
When there are enough units to distinguish treatment effects from chance variation
What is Replication?