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the positioning of a test item to scale range on some dimension, often the dimension of difficulty level.

a zone of relatively average damage to the tissues caused by inadequate blood supply. Tissues in the penumbra may be partly preserved due to...

This the name that is given to the misidentification syndrome characterised by delusions that some people have been transformed both physically and psychologically into...

an inventory where the person is asked to express their likes and dislikes for a range of different activities and attitudes. They are compared...

the name describing the variations between people in one or more traits, behaviors or characteristics such as variations in intelligence). Compare intra-individual differences.

A specific activity with an incentive to engage and is derived from the activity itself (e.g. a genuine interest in a studied subject) rather...

On the same side of the body. Compare contralateral

The tendency to note and remember things not directly relevant to the activity at hand. It is often described as unintentional, and also latent,...

A drug that is injected directly into a vein with a syringe and a needle and is a form of drug use. Heroin the...

Self orientation from introversion the range or continuum characterised by inward and concerns self directed and behaviours to extraversion, characterised by outward and social...