How does evaluation a source form opinions

One common educational practice is to chart students' progress over time so that students can see their own improvement. these progress charts often lead to higher student achievement in the absence of other observable forms of reinforcement. the effectiveness of such charts in changing behavior illustrates the role of reinforcement as:

Why was trump elected in the first place? ‍♂️

Which choice analyzes the parts of the word and determines the meaning of the word spectator