NAME:____________________4 February 2008Extra Credit Quiz #1Sociology 1071.Dr. Browning spent a great deal of time developing a new measure of racial segregation within urban neighborhoods. However, when this research was presented at a meeting, other researchers did not agree that Dr. Browning’s measure -- the number of gas stations within a neighborhood -- actually tested racial segregation. Based on the colleagues’ reactions, Dr. Browning’s research is lacking which of the following?a. Reliabilityc. Validityb. Analysisd. Measurement Congruence2.What are the independent and dependentvariables in the following statement?