Higher coefficients indicate higher validity. Generally, assessments with a coefficient of .60 and above are considered acceptable or highly valid. Types of Validity. There are three types of validity that we should consider: content, predictive, and construct validity. Content validity refers to the extent to which an assessment represents all facets of tasks within the domain being assessed.
The definition of a gland is an organ or group of cells that releases substances or waste from the body. An example of a gland is the thyroid. any organ or specialized group of cells that produces secretions, as insulin or bile, or excretions, as urine: some glands, as the liver and kidneys, have ducts that empty into an organ: the ductless (or endocrine) glands, as the thyroid and adrenals, secrete hormones.
exocrine gland-a gland that secretes externally through a duct. duct gland, exocrine. gland, secreter, secretor, secretory organ-any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream.xocrine gland. n. 1. (Anatomy) any gland, such as a salivary or sweat gland, that secretes its products through a duct onto an epithelial surface.