Term
|
Definition
| Every possible sample (of the desired sample size) has an equal chance of being the sample ultimately selected. (Allows for generalizing) |
|
|
Term
|
Definition
| When values of the statistic from different random samples are centered at the actual parameter value. |
|
|
Term
|
Definition
| Values of sample statistics vary from sample to sample. (Population size is NOT a factor, as long as the population is at least 10 times as large as the sample size) |
|
|
Term
|
Definition
| How much the values vary from sample to sample. (related to sample size: larger sample sizes are more precise and closer together- more accurate) |
|
|
Term
|
Definition
| Situations that come to mind easily and is of little value in scientific research. |
|
|
Term
|
Definition
| A study in which the experimenter actively imposes the treatment on the subjects. (Groups are ideally identical in all other aspects) |
|
|
Term
|
Definition
| Explanatory Variable Group |
|
|
Term
|
Definition
| The preferred method of assigning subjects to treatments in which each one has an equal chance of being assigned to any treatment group. Generally achieves the goal of creating similar treatment groups. |
|
|
Term
| Randomized Comparative Experiment |
|
Definition
| An experiment with random assignment. |
|
|
Term
|
Definition
| Subjects often respond positively simply to being given treatment/A Placebo is administering a control group using a standard or a fake treatment. |
|
|
Term
|
Definition
| Blind is when the subjects don't know which treatment they're receiving. Double-blind is when both the person evaluating and the subjects don't know which treatment the patient has. |
|
|
Term
|
Definition
| Extremely detailed description of an experiment so that others may follow clearly. |
|
|
Term
|
Definition
| When there is an identifiable external confounding variable, experimenters classify subjects by groups of that variable, then randomize within those groups. |
|
|
