DIAGNOSTIC EDUCATIONAL TESTS
Tests that are used to identify any deficiences in academic learning. Also called eduactional tests.
DICHORIAL TWINS
Twins with separate chorionic membranes as embyos. Compare monochorial twins.
DIFFERENTIAL REINFORCEMENT OF ALTERNATIVE BE
Reinforcing one behaviour by decreasing another.
DIFFUSION MODEL
Model of accuracy and reaction timewhere information is gained continuosly rather than in steps.
DISADVANTAGED
Families and people who are deprived of access to a society's resources and the needs for life. See culturally disadvantaged.
DISCORDANCE
1.The condition of being in variance to a situation. 2. The dissimilarity seen in twins with rrspect to a trait…
DISORGANIZED ATTACHMENT
A strange situation where a form of insecure attachement occurs where an infant shows no consistent behaviour when separated and…
DISPLAY-CONTROL COMPATIBILITY
Ergonomics. The design principle where controls and the corresponding displays shoild be compatible on dimensions of size, colour and location.…
DISSOCIATIVE PATTERN
The pattern of behaviour that is consistent with a dissociative disorder.
DISTRIBUTION-FREE TEST
A test that makes no assumptions about the distribution of scores. See non-parametric statistics.