Problem: Distinguish four survey formats (open-ended, forced-choice, Likert scale, & semantic differential). ? Explain the common problems of wording survey questions (e.g., leading, double-barreled, negative expressions). ? Distinguish response sets (e.g., fence sitting, acquiescence, or social desirability). ? Discuss ways to control participants' social desirability. ? Identify observational study examples. ? Define the Observer Bias and explain ways to reduce it. ? Define the Participant Reactivity and explain ways to reduce it. Need Assignment Help?