What is a ""subject role"" that might be adopted by participants responding to the demand characteristics of a research study?

b. apprehensive subject role.

Explanation:

The Apprehensive Subject Role refers to a situation where the subject/ participant feels uncomfortable about being researched.

Because of this, they might react in a way that they consider to be socially acceptable so that they don't look bad which means that they may give a response that they don't think to be true because they want to be accepted.

This is one of the roles a participant may assume.

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.