| A | B |
|---|
| variable | a concept whose value changes from case to case |
| correlation | a relationship by which two (or more) variables change together |
| survey | a research method in which subjects respond to a series of statements or questions in a questionnaire or an interview |
| participant observation | a research method by which investigators systematically observe people while joining in their routine activities |
| hypothesis | a statement of how and why specific facts are related |
| causation | a relationship in which we know that change in one (independent) variable causes change in another (dependent) variable |
| scientific method | a systematic plan for conducting research |
| experimental research | a research method for investigating cause and effect under highly- controlled conditions |
