United Nations Declaration on the Rights of Mentally Retarded Perso...
vertical décalage in Piagetian theory, the invariable seque...
KAI abbreviation for Kirton Adaption–Innovation Inventory.
Unusual Uses Test a test that measures divergent-thinking a...
biphasic sleep see polyphasic sleep.
urethra n. a membrane-lined duct that carries urine from th...