Biases
Bias that includes people volunteering themselves for a sample
What is a Volunteer Bias?
A sample method where everyone is chosen equally and is the most common way
What is SRS?
1. assign
2. pick
3. Do
What is SRS?
Randomly Selected: population (YES)
What is for all population
Bias that represents the people that choose not to answer or comply to the sample
What is a Non Response Bias?
A sample that is chosen by location of group
What is a Cluster Sample?
1. Group by location
2. Pick
3. Do
What is a Cluster Sample?
Randomly Selected: population (NO)
What is for only sample
When people are close and easy to get for your sample with minimal effort
What is a Convenience Bias?
A sample method that is divided into a strata before sampling
What is a Stratified Sample?
1. Group by strata
2. Assign
3. Pick
4. Do
What is a Stratified Sample?
Randomly Assign: Cause (YES)
What is ___ causes ___?
When asking a population for a sample a question and it seems to sound like they have a preference over something else
What is Question Wording Bias?
A sample where it is easily achieved to get people and not simply random
What is a Convenience Sample?
What is the separation of an experiment after the original experiment is done to eliminate confounding variables?
What is a Block Sample?
Randomly Assign: Cause (NO)
What is association between ___ & ___?
When you incorporate your own feelings into the experiment of your sample and asking your question
What is Self-Report Bias?
A sample of a population where first person is random and then the rest of the sample is chosen by a pattern
What is a Systematic Sample?
1. Compare
2. Random Assign
3. Replication
4. Control
What are the 4 Principles?
When the patient doesn't know what treatment they are getting
What is a blind study