Glossary C

Curvilinear function refers to a function that departs from a straight line and contains components that can be fit by various mathematical formulas for curved lines.

Curvilinear relationship a term in a scatter plot or the data for a correlation , a pattern in which the data points tend to cluster in a curved line.

Cushing's syndrome is a syndrome named after Boston surgeon Harvey Cushing (1869–1939) that refers to a severe systemic illness most usually seen in female individuals, which includes neurologic symptoms and changes in bone structure, hypertension , and diabetes. The adrenocorticotropic hormone-secreting tumor is the most serious condition encountered by any of the pituitary tumors and can result in a necessary complete removal of the tumor, including the pituitary gland.

Cut score refers to a predetermined score used to differentiate levels of pupil performance which is given usually in statewide assessment .
Cutaneous senses is defined as the ability to perceive sensations, such as touch and pain, that are based on the stimulation of receptors in the skin.
Cutoff points is a term used in the context of conformity-oriented definitions of abnormal behavior , that refer to the numerical values on a test or inventory that differentiate normal from abnormal performance.

Cutoff score is a term usually used in Neuropsychology to determine a range of impaired functioning. A patient scoring worse than the Cutoff score is labeled as impaired; a patient scoring better is labeled as within normal limits (WNL).

Cutting off reflected failure (CORFing) refers to distancing of oneself from a group that performs poorly.