A-level Chemistry

Peer Review The evaluation of a scientific report by other scientists who are experts in the same area (peers). They go through it bit by bit, examining the methods and data, and checking it's all clear and logical.

Valid Result A result that answers the question it was intended to answer.

Variable A quantity that has the potential to change.

Variable A quantity that has the potential to change.

Independent Variable The variable that you change in an experiment.

Dependent Variable The variable that you measure in an experiment.

Discrete Data Data that can only take certain values.

Continuous Data Data that can have any value on a scale.

Categoric Data Data that can be sorted into categories.

Ordered/Ordinal Data Categoric data where the categories can be put in order.

Precise Result A result that can be consistently reproduced in independent experiments.

Anomalous Result A result that doesn't fit in with the pattern of the other results in a set of data.

Precise Result A result that can be consistently reproduced in independent experiments.

Correlation The relationship between two values.

Correlation The relationship between two values.

Valid Result A result which answers the question it was intended to answer.

Accurate Result A result that is close to the true answer.

Precise Result A result that can be consistently reproduced in independent experiments.