| A | B |
|---|
| repetition | repeating your experiments to check for similar outcomes, OR having more than one trial |
| replication | performing someone else's experiment, OR Repeating the essence of a research study, usually with different participants in different situations, to see whether the basic finding extends to other participants and circumstances. |
| observation | Information obtained through the senses. |
| inference | A conclusion reached on the basis of evidence and reasoning |
| hypothesis | A proposed, scientifically testable explanation for an observed phenomenon. (If________, then _________) |
| Test variable | The variable that is tested or changed by the researcher. |
| Outcome variable | the variable that may change; it is measured to determine the effect of the variable that was changed |
| control variable (constant) | A variable that is kept constant during a controlled experiment. |
| control group | In an experiment, the group that is not exposed to the treatment; compares to the experimental group for evaluating the effect of the test variable |
| experimental group | In an experiment, the group that includes the test variable |
| Independent Variable | another name for test variable |
| Dependent Variable | another name for outcome variable |
| investigation | a procedure carried out to gather data about an object or event |
