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Experiments
Biology I-3 (experiments)
| Term | Definition |
|---|---|
| experiment | controlled test for hypotheses |
| Hypothesis | prediction about variables that can be tested |
| independent variable | factor manipulated by experimenter to observe its affect on other variables; difference between experimental and control groups |
| dependent variable | measured outcomes in an experiment; factor expected to respond to changes in the independent variable |
| constant/controlled variables | factors kept the same for all groups |
| observation | collected information or data |
| experimental data | data collected from subjects under test conditions = have manipulated independent variable |
| control data | baseline data for comparison which is collected from subjects under "normal" or untreated conditions |
| science | process to solve problems with logic, tests and evidence |
| inference | reasonable conclusion based on what is known |
| scientific theory | explanation for natural events generally accepted to be true by scientists |
| bias | prejudice towards some idea |