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Lab Skills
Review of lab skills
| Question | Answer |
|---|---|
| Observation | what is seen or measured |
| Inference | a conclusion based on observation or evidence |
| Hypothesis | prediction : If (independent variable) then (dependent variable) |
| Theory | an explanation supported by strong evidence |
| Experiment Group | group with the treatment or "new drug" |
| Control Group | does not receive the treatment "no drug" |
| Placebo | fake pill |
| Independent variable | the treatment or new drug |
| Dependent variable | what you measure, the data |
| Ways to make an experiment better or more valid | repeat test larger group make it longer |
| Number of things you should change in an experiment | one |