| A | B |
|---|
| Independent Variable | The factor of interest to the researcher; what is manipulated |
| Situational Variable | Different features in the environment that participants might encounter. |
| Instructional Variable | Directions given to participants |
| Experimental Group | The group that receives a treatment |
| Control Group | The group that does not receive a treatment |
| Extraneous Variables | Variables that are not controlled for and may influence the experiment. |
| Confound | An extraneous variable that co-vary with the IV and can offer an alternative explanation |
| Dependent Variable | The variable that is measured |
| Subject Variable | An already existing characteristic of participants |
| Level of Independent Variable | Number of groups or treatments in the experiment |
