A measurment is considered accurate if its close to the true value
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Anomalies
Results which are not to be part of variation - a major difference
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Random error
Random errors are present when any measurment is made and cannot be corrected.
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Systematic error
Cause the readings to differ from the true value but a consistent amount each time a measurment is made. Sources include: environment, method of oberservation and instruments used
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Evidence
Data which has been shown to be valid
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Fair Test
A test which only the independent variable has been allowed to affect the dependent variable
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Hypothesis
A statement intended to explain certain facts or observations
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Interval
Quantity between readings
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Precision
Precise measurments are ones in which there is very little spread about the mean. I.e. the measurments might not be accurate but if all results are similiar, it is percise
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Prediction
What you expect to happen in the future, based on current observations
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Range
Maximum value - minimum value
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Repeatable
If the original experimenter repeats the investigation using the same equipment and techniques and the same result is obtained
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Reproducible
If a different experimenter carries out the experiment and obtains the same results
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Validity
Suitability of the investigative procedure to answer the question being asked.
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Categoric Variable
Values that have labels e.g. name of plants, shoe size etc
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Continuous Variables
A variable that can take on any value from its minimum to maximum. E.g. Height (can be measured in halves)
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A Control
The control may effect the outcome of the investigation and therefore has to be kept constant or monitored
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Dependent
A dependent variable is the variable of which the value is measured for each and every change in the independent variable
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Independent Variable
The variable for which values are changed
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Other cards in this set
Card 2
Front
Results which are not to be part of variation - a major difference
Back
Anomalies
Card 3
Front
Random errors are present when any measurment is made and cannot be corrected.
Back
Card 4
Front
Cause the readings to differ from the true value but a consistent amount each time a measurment is made. Sources include: environment, method of oberservation and instruments used
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