Concurrent validity and predictive validity are the two types of criterion-related validity. In order for a test to be valid, it needs to have construct validity, content validity, and criterion-related validity.
â¢ GLASSY (adjective) The adjective GLASSY has 3 senses: 1. resembling glass in smoothness and shininess and slickness. 2. (used of eyes) lacking liveliness. 3. (of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it. Familiarity information: GLASSY used as an adjective is uncommon.
A glass is by definition a liquid at all temperatures. Compositionally a typical glass consists of the 'glass (or network) formers' (SiO2 and B2O3), fluxes (also called alkaline metals, K2O and Na2O), and the network (or matrix) modifying alkaline earths (CaO, BaO, PbO, ZnO).