In addition, some of the materials used in IQ tests may be totally foreign to certain cultures, thus creating inequalities and biases. It is interesting to note that IQ scores have increased so much over the 20th century that most of today's test takers would be considered 'geniuses' by 1900 standards.
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines.
Short for asymmetric digital subscriber line, ADSL is a type of DSL broadband communications technology used for connecting to the Internet.ADSL allows more data to be sent over existing copper telephone lines (POTS), when compared to traditional modem lines.hort for asymmetric digital subscriber line, ADSL is a type of DSL broadband communications technology used for connecting to the Internet.