A district salesperson calls on a new customer and has a promising meeting. Afterward she can't stop dwelling on the first thing the customer said and forms her opinion based on that comment. She is experiencing the effect.

it may be prejudice effect

Explanation: prejudice means basing a opinion even tho they don’t have enough information.

the historians cited in the article all agree with one another about the cause of the civil war. despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the civil war. the fact that all these historiansgenerally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of howard university, clemson university, and the university of colorado.

the last day of school because i didn’t have to go to school the next day