To test his measure, dr. sheffield gives his measure to a group of people in gamblers anonymous (ga) and another group in alcoholics anonymous (aa). he finds that people in the ga group have higher scores on his new measure than people in the aa group. why did dr. sheffield do this? a. to obtain evidence for criterion validity b. to obtain evidence for content validity c. to obtain evidence for face validity d. to obtain evidence for convergent validity

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.