Vocab
Define "population"
Refers to a group of things we want to study
Experimental studies
Which type of sample is an unbiased survey that gives each individual an equal chance of being surveyed
Simple random sample (SRS)
What is the difference between correlation and causation?
Correlation evaluates the relationship between two variables, while causation is a cause/effect relationship
Define "Random Assignment"
Assigning participants to receive different conditions of an experiment by chance
Identify the type of study: Research design that looks at the relationship between two or more variables
Correlational/Observational studies
Which type of sample divides the population up into "strata"
Stratified random sample
Which is used to prove pre-existing beliefs; science or pseudoscience?
Pseudoscience
Define "sample"
A sample is a part of the population that we examine and draw conclusions from
In a study, 30 participants are evaluated on a memorization test. One group is placed in a quiet setting with no distractions. The other is placed in a setting with lots of noise. The independent variable would be...
The noise level
If a person is attempting to disprove a theory, is this science or pseudoscience?
Science
Define a "cofounding variable"
A factor other than the one being studied that is associated with the independent variable and dependent variable that could change the outcome of what was tested
In a study, researchers want to see how two different sets of tires will affect the speed of an F1 race car. What would be the dependent variable in this scenario?
The speed of the car
A cofounding variable
Define a "quasi-experimental design study"
Studies that aim to evaluate interventions, but do not use random assignment
Quasi-experimental studies do not use random assignment