Jeff Moss (hacker) also works with Mr. Robot's technical consulting team. DEF CON was portrayed in "The X-Files" episode "Three of a Kind" featuring an appearance by The lone gunmen. DEF CON was portrayed as a United States government-sponsored convention instead of a civilian convention. Actor Will Smith visited DEF CON 21 to watch a talk by Apollo Robbins, the gentleman thief and to study the DEF CON culture for an upcoming movie role. Jeff Moss (hacker) Jeff Moss, also known as Dark Tangent, (born January 1, 1975) is an American hacker, computer and internet security expert who founded the Black Hat and
Item analysis Item analysis Within psychometrics, Item analysis refers to statistical methods used for selecting items for inclusion in a psychological test. The concept goes back at least to Guildford (1936). The process of item analysis varies depending on the psychometric model. For example classical test theory or the Rasch model call for different procedures. In all cases, however, the purpose of item analysis is to produce a relatively short list of items (that is, questions to be included in an interview or questionnaire) that constitute a pure but comprehensive test of one or a few psychological constructs. To carry out the