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Big Orange Big IdeasEighteen percent of the adult population in the US lacks a high school credential. Many go back to school to earn their General Educational Development credential, better known as the GED. Yet, half of those who teach GED programs say they do not feel prepared to provide reading instruction. Steve McCallum, department head in education psychology and counseling, along with professors Sherry Bell and Mary Zeigler, have developed a test ARIK-A, the Assessment of Reading Instructional Knowledge–Adults, to assess instructors’ knowledge base and inform their professional development. Better teachers could mean more GEDs. To access the test, visit