Chp 13
Order by
24 terms
Terms | Definitions |
|---|---|
 a study that observe and record behaviors | Observational Study |
| researchers impose a treatment on the subjects | experiment |
| W/ an experiment, there must be an explanatory response | Difference between an observational study and an experiment |
| variable that's manipulated | Explanatory variable |
| variable you measure; what you want to know | Response variable |
| what you did your experiment on; when talking about people use 'subjects' | experimental units |
| the variable of interest (explanatory variable) | Factors of the experiment |
| measure of a particle factor | levels of the experiment |
| subjects are assign a baseline treatment to use as a comparison | control |
| random assignment of subjects | randomization |
| perform the experiment on more than one subject | replication |
| simplest form of design; similar to simple random sampling; every sample of size (n) has an equal chance of being picked. | Completely randomized design |
| subjects are group before the experiment begins to reduce variation; similar to stratified sampling | completely randomized block designs |
| similar to paired t-test; special king of block; each subject gets both treatments. | matched pairs design |
| to control the factors you can see; | The purpose of blocking is? |
| helps balance the ones you cannot see | The purpose of randomization? |
| when results are too large to attribute to chance | Statistically significant |
| when subject respond to a placebo as if they've gotten the treatment | Placebo effect |
| either the subject or the researcher does not know what treatment is given | single blind |
| both of the subject and the researcher do not know which treatment is given. | double blind |
| a variable that's there before you begin your study that you were not aware of | Lurking variable |
| you can not separate the effects of the explanatory variable from the other influences on the response | confounding variable |
| Completely randomized and block designs | Two types of experimental design are |
| control, randomization, and replication | What are the three principles of experimental design |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.