DIRECT MARKETING
Promoting a product direct to the consumer rather than by use of mass media.
DIRECTIONAL HYPOTHESIS
Prediction relating to the direction of experimental scores from one group will differ to another group.
DISABILITY RATING SCALE (DRS)
A scale used to monitor progress during rehabilitation of brain damaged people.
DISCONTINUITY THEORY
Compare to continuity hypothesis. See all-or-none learning hypothesis- eureka task.
DISCRETIONARY TASK
An unstructured task solved at discretion of the group or its leader using a variety of procedures. See additive task-…
DISTINCTNESS
1. The quality of an object. 2. In a task that needs attention it is the extent to which one…
DISTRIBUTIONAL REDUNDANCY
Psychological aesthetics. The development of uncertainty in an artistic pattern by making some elements occur more often than others.
DIVERGENT EVOLUTION
The way populations become inceasingly different to each other in different habitats.