Parts of an Experiment
Changing this variable causes change in another variable.
What is an explanatory variable?
What is a placebo?
This is the "SRS" of the experimental design in that it is the the most simple.
What is a randomized comparative experiement?
Some people just don't stick with it. Both in high school and experiments, they are called this.
What are drop outs?
The variable that is changed by the another variable.
What is the response variable?
A thing that impacts the response variable rather or in addition to the explanatory variable.
What is a lurking variable?
This design controls for lurking variables by ______ the control group and the treatment group with people that are either extrememly similar or exactly the same.
What is a matched-pair design?
Those rascally scoundrals (subjects) that just don't do what theyn are asked to d.o by the experimenter
What are nonadherers.
Individuals studies in an experiment
What are subjects
Confusion caused by a variable that is impacting the repsonse variable.
What is confounding?
This design is like a stratifed sample because the individuals are put into homogeneous groups before they are randomly assigned.
What is block design?
What is confidential.
Any specific experimental condition applied to the subjects
What is a treatment
The term for the treatment groups not knowing which treatment they are receiving.
What is blinding?
If you want to design your experiment so that neither the subjects nor those that are administering the treatments know who recieves which treatments, you make this kind of experiment.
What is double-blind?
In order for experiments to be ethical the subjects must give this.
What is informed consent.
An element of design that makes sure there are not systematic differences btween the experimental treatment groups
What is control
This group allows us to compare with the treatment group. It may receive either a dummy treatment or the original treatment.
What is a control group?
What are enough subjects.
In order for us to know that a response is not merely due to chance, we want to see that the observed effect is so large that iit would rarely occur by chance. This is called
What is statistically significant?