Accuracy - A measurement result is considered accurate if it is judged to be close to the true value., Measurement error - Difference between a measured value and the true value., Random error - These cause readings to be spread about the true value due to results varying in unpredictable ways., Systematic error - These cause readings to differ from the true value by a consistent amount each time., Zero error - Gives a false reading when the true value of a measured quantity is zero., Interval - The quantity between readings., Precision - Where there is very little spread about the mean value., Range - Minimum to maximum value of a variable., Repeatable - If you do the experiment again, you would get the same results., Reproducible - If another person carries out the experiment or different equipment is used you would get the same results., Resolution - The smallest change a measuring device can measure., Control variable - Kept constant., Dependent variable - Measured for each change in the independent variable., Independent variable - Values which are changed or selected by investigator., Categoric variable - These are labels or discrete values.,

AQA required practical vocab science

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