A measure allowing high school testing companies other than GED Testing Services to operate in the state is advancing in the Illinois Legislature.  Lawmakers say a recent GED price increase from $50 to $120 strains low-income test takers.  They say changing the law could drive down costs.  The proposal aims to open up competition by substituting “GED” with “high school equivalency tests” in the current law.  New tests would still need to pass the state’s education standards for approval.  Kari Docherty is a GED examiner in Jefferson and Hamilton counties.  She tells WSIL-TV the state could run into problems if the rest of the country still only uses the GED program.  The bill passed the House last week and now moves to the Senate.