DEFECT THEORY
States that people with mental retardation process things differently to those who are not retarded.
DEGREES OF FREEDOM PROBLEM
When the brain chooses the best movements to use to solve a problem.
DELTA RULE
The change in strength of an association is relative to the maximum strength and the current strength.
DEMAND CHARACTERISTICS
Anything that can influence or bias a person's behaviour. See experimenter effect- sensory leakage.
DEMOGRAPHY
The study of the statistics of population. See biostatistics- social statistics.
DENYING THE CONSEQUENT
Logic. If a conditional statement is accepted as true then the negative can be inferred as well. Also called modus…
DEPRIVATION DWARFISM
A stunting of physical growth in infancy due to non-organic factors. See failure to thrive.
DESIGN FOR ADJUSTABLE RANGE
Designing equipment for peopel to use that can be adjusted for different people. Compare design for the average- universal design.
DETERMINING TENDENCY
A goal direction that maintains a sequence of behaviours. Also called determing set.