Key terms & definitions

A judgement that answers an investigation's question using the statistical evidence.

A judgement reached after considering the evidence in relation to the question being investigated.

The final answer to the question, reached by weighing the argument and evidence developed in the response.

The percentage of pairs in which both individuals share the characteristic being studied, such as alcohol addiction.

A coastline where bands of different rock types run parallel to the shore.

A coastline where bands of rock run approximately parallel to the coast.

Titration results that are close enough to one another to be used together; in this practical, they are within 0.2 cm³.

Titres that agree closely within a chosen tolerance.

Titre values that are sufficiently close to one another to be used in calculating a reliable mean.

An agreement between the Vatican and a government. The 1933 agreement with Nazi Germany promised protection for Catholic religious affairs in return for the Church staying out of politics.

The 1122 agreement between Pope Callixtus II and Emperor Henry V that distinguished bishops’ spiritual authority from their secular powers and possessions.

A system in which a man maintains another woman as a partner alongside his wife, without giving that woman the same status as his wife.

Feedback received during a performance.

A brain injury caused by a blow to the head, which temporarily affects normal brain function.

The change of water vapour into liquid water as it cools.

A change from a gas to a liquid, such as water vapour forming liquid water as it cools.

The change from a gas to a liquid.

The change of state from water vapour to liquid water.

A type of polymerisation in which monomers with two functional groups join and a small molecule, usually water, is formed at each new link.

A reaction in which molecules join while a small molecule is eliminated.

The cooled part of a distillation apparatus where vapour turns back into liquid.

Apparatus that cools vapour so that it condenses into a liquid.

The change of state from a gas to a liquid.

In this historical context, a person of high rank graciously dealing with someone considered socially inferior. Mr Collins treats it as praise, although Austen exposes the superiority it assumes.

An expression that evaluates to either True or False and can control a choice or repetition in a program.

A cause or supporting circumstance on which something depends for its arising or continuation.

A test that is either true or false and determines which instructions a program follows.

One version of the independent variable experienced by participants in an experiment.

A grammatical construction that makes an action or outcome depend on a condition, often introduced by ‘if’.

The principle that something occurs or exists because the necessary conditions are present; when those conditions change or cease, what depends on them also changes or ceases.