Balash helped Rovshan, even though he did not get anything in return. Balash displayed

Ms. Skipworth challenged the students in her class to complete an extra-credit assignment, promising to add three points to everyone’s final grade if every single student turned it in. Believing that other students wouldn’t complete the assignment and not wanting to spend his free time doing work for no reason, Chase did not complete the assignment. What psychological concept does this scenario illustrate?

Which of the following studies would best replicate the “good mood” result associated with helpfulness?

Gulnaz studies social exchange theory. Which hypothesis would she most likely make?

In an experiment, Dr. Westwood randomly assigned participants to one of two ethnically diverse groups. Group 1 was given a task of working together to solve brain teasers, which would enable them to “escape” from a room in which they were locked. Group 2 was given a task of mingling with one another. All other conditions, including the room in which the groups interacted, were the same. After the tasks, Dr. Westwood measured how connected the members of the group felt to one another. She found that the Group 1 members tended to feel more connected with one another than the Group 2 members. Which of the following best describes the outcome of Dr. Westwood’s use of experimental control?

Anke is running for class president on a platform of decreasing the cost of school snacks to improve food accessibility. Dario is running for class president on a platform of increasing the cost of school snacks to make needed repairs to the school’s lockers. Anke and Dario each see the other as unethical and aggressive. Which of the following psychological concepts is illustrated in this scenario?