| A | B |
|---|
| The smallest scale division that an instrument measures to | Precision |
| Involves fixing known points and marking a scale between these points | Calibration |
| A collection of measurements | Data |
| Random error | Errors caused by human error or natural fluctuations in the measurments |
| Systematic error | Errors caused by a flaw in technique or measuring equipmment |
| Zero error | An error caused by device not being re-set to zero |
| Parallax error | Errors caused by reading a scale at an angle and not directly in line |
| How close a result is to the true value | Accuracy |
| Little spread in your readings | Reliable |
| Results affected only by changing one variable | Valid |
| The variable we change | Independent variable |
| The variable we measure | Dependent variable |
