Answer:
experimenter bias
Explanation:
The scientist try to eliminate experimenter bias because in experimenter bias experimenter influence the outcomes of participants by giving cues to obtained expected results. Such experiments are biased because in this participants view and response controlled sub-consciously to meet the expected outcomes of experimenter.
They have been found on oracle bones
The correct answer is 1) continuing to improve roads, bridges, and canals.
John Quincy planed to ease tensions between the north and the south by continuing to improve roads, bridges, and canals.
The situation in the country continually presented many and more difficult situations. The issue of slavery and the pressure of the northern abolitionists combined to increase tension between the North and the South.
That is why President John Quincy Adams proposed a special program aimed to invest money in national infrastructure with the aid of federal funding. He wanted to build new bridges, roads, schools, and canals like the Erie Canal that was completed during his tenure.