Measurements that fall outside of the expected measured values. Large number of readings allow anonymous data to be identified.
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Causal Link
A change in one variable is caused by a change in another variable.
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Control Variable
A variable that may affect the outcome of the investigation. Must be kept constant throughout the investigation or the effects of the independent variable will not be shown.
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Control experiment
Designed to show that it is only the independent variable that has produced the results. Everything except the independent variable is the same.
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Control Group
Treated the same as the experimental group except for the factor that is being investigated. This allows comparison.
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Correlation
A relationship between two variables, however it may not be a casual one.
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Dependant Variable
The variable which is measured for each change in the independent variable.
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Independent Variable
Variable for which the values are changed by the investigator.
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Null Hypothesis
A hypothesis in terms of there being no difference or no association.
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Precision
Measurements will have very little spread about the mean value. Smallest scale on a measuring device.
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Probability
This is the likelihood of an even occurring, and can be expressed mathematically.
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Reliability
Repeat experiments increase reliability of the mean. If other scientists get the same results, then the results of the initial investigation will be more reliable.
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Other cards in this set
Card 2
Front
Measurements that fall outside of the expected measured values. Large number of readings allow anonymous data to be identified.
Back
Anomalous Data
Card 3
Front
A change in one variable is caused by a change in another variable.
Back
Card 4
Front
A variable that may affect the outcome of the investigation. Must be kept constant throughout the investigation or the effects of the independent variable will not be shown.
Back
Card 5
Front
Designed to show that it is only the independent variable that has produced the results. Everything except the independent variable is the same.
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