Technology / Motorcycle / Lid: Another name for a helmet is a Lid. Some states require helmet use. Other states have age restrictions. Some states don't require a helmet at all.


Business / Human Resources (HR) / Validity: The general concept of validity is traditionally defined as 'the degree to which a test measures what it claims, or purports, to be measuring.' Validity is normally subdivided into three categories: c MORE

Valid Hits

Business / Internet Marketing / Valid Hits: A further refinement of hits, valid hits are hits that deliver all information to a user. Excludes hits such as redirects, error messages and computer-generated hits. MORE

Slide Step

Entertainment / Bowling / Slide Step: The final step of the delivery, on which the bowler's foot slides. MORE

Consecutive Holidays

Life Style / Holiday / Consecutive Holidays: As the name implies, consecutive holidays are ones that fall one after the other. Typically, families use these consecutive holidays as a time to travel or visit with friends. MORE

Predictive Validity

Business / Human Resources (HR) / Predictive Validity: Used in the test validation process to measure the relationship between test scores and actual job performance. MORE

Network Covalent Solid

Science / Chemistry / Network Covalent Solid: A substance which consists of an array of atoms held together by an array of covalent bonds. A crystal of a network covalent solid is actually a single, gigantic molecule. Diamond and quartz are examp MORE